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                          The Hackers Acronym Chart
                       INTERNET ACRONYM SUPPLEMENTAL
                      Created for The Hacking Community
                                     By:

               THE INTERNATIONAL INFORMATION RETRIEVAL GUILD

              Compiled by: -=>The IIRG<=-   Input by: MERCENARY

             Version One [04/16/1995] - Happy Easter Everyone

                E-mail Mercenary At : mercenary@iirg.com
                                      iirg@l0pht.com
                                      mercenar@works.com

          Contact us By Data at : (203)-832-8441 NUP: cyberdeck

                  or contact the IIRG by Snail-mail at,

                             Mercenary/IIRG
                          862 Farmington Avenue
                               Suite 306
                            Bristol,CT. 06010

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      3GL             Third Generation Language
      4GL             Fourth Generation Language
      A               Ampere
      A               Amplifier
      A               Angstrom
      A               Area
      A/D             Analog/Digital
      A/M             Auto/Manual
      A/N             Alphanumeric
      A/T             Action Time
      AA              Auto-Answer
      AAA             Abdominal Aortic Aneurysm
      AAA             Acute Anxiety Attack
      AAA             Androgenic Anabolic Agent
      AAA             Ascii Adjust After Addition
      AAAI            American Academy of Allergy and Immunology
      AAAI            American Association for Artificial Intelligence
      AAAS            American Association for the Advancement of Science
      AAC             Authorization and Access Control
      AAD             Adjust After Division
      AAFP            American Association of Family Practice
      AAI             Age-Adjusted Incidence
      AAIMS           Analytical Information Management System
      AAM             Ascii Adjust After Multiplication
      AAMC            American Association of Medical Colleges
      AAMRS           Automated Ambulatory Medical Record System
      AAMSI           American Association for Medical Systems Informatics
      AAOS            American Academy of Orthopedic Surgeons
      AAP             Affirmative Action Program
      AAP             Applications Access Point
      AAP             Automated Accounts Payable
      AARN            Australian Academic Research Network
      AAS             Advanced Administration System
      AAS             Advanced Automation System
      AAS             Anabolic Androgenic Steroids
      AAS             ASCII Adjust After Subtraction
      AAS             Automated Accounting System
      AAT             Average Access Time
      AAVD            Automatic Alternate Voice Data
      ABA             American Bankers Association
      ABBR            Abbreviation
      ABBS            Apple Bulletin Board System
      ABC             Automated Book Catalog
      ABC             Automatic Bandwidth Control
      ABC             Automatic Brightness Control
      ABCS            Advanced Business Computer Systems International
      ABD             Abdomen
      ABEL            Advanced Boolean Expression Language
      ABEND           Abnormal End
      ABEP            Auditory Brainstem-Evoked Potentials
      ABET            Accreditation Board For Engineering and Technology
      ABF             Application-By-Forms
      ABFEL           Air-Based Free-Electron Laser
      ABFT            Algorithm-Based Fault Tolerance
      ABG             Arterial Blood Gas
      ABI             Application Binary Interface
      ABIC            Adaptive Bilevel Image Compression
      ABIG            Access bus Industry Group
      ABIOS           Advanced Basic Input/Output System
      ABL             Airborne Laser
      ABLC            Amphotericin B Lipid Complex
      ABM             Automatic Batch Mixing
      ABMT            Autologous Bone Marrow Transplantation
      ABNM            Additive Belief Network Models
      ABO             ABO Blood Group
      ABO             Advanced Byte-Oriented
      ABP             Arterial Blood Pressure
      ABP             Actual Block Processor
      ABR             Auditory Brainstem Response
      ABS             Absolute
      ABS             Acute Brain Syndrome
      ABS             Alternative Billing Service
      ABS             Apple Business Systems
      ABSDF           All Burma Students' Democratic Front
      ABSEES          American Bibliography of Slavic and East European Studies
      ABT             Abort
      ABT             Abort Timer
      ABT             Answer-Back Tone
      ABU             Application Business Unit
      ABUI            Association of Banyan Users International
      ABW             Actual Body Weight
      AC              Access Control
      AC              Adaptive Control
      AC              Alternating Current
      AC              Analog Computer
      AC/DC           Alternating Current/Direct Current
      ACA             Acyclovir
      ACA             Adenocarcinoma
      ACA             Adjacent-Channel Attenuation
      ACAP            Automatic Circuit-Analysis Program
      ACAS            Aeronautical Chart Automation Section
      ACB             Access Method Control Block
      ACB             Application Control Block
      ACB             Automatic Call-Back
      ACC             Accumulator
      ACC             Ambulatory Care Center
      ACC             American College of Cardiology
      ACC             Audio Communications Controller
      ACCS            Automated Calling-Card Service
      ACD             Alarm Control Display
      ACD             Anterior Chamber Diameter
      ACD             Anti-Convulsant Drug
      ACD             Automatic Call Distribution
      ACD             Autosomal Co-Dominant
      ACDA            Automatic Call Disposition Analyzer
      ACDI            Asynchronous Communications Device Interface
      ACE             Adrenocortical Extract
      ACE             Advanced Composition Explorer
      ACE             Advanced Computing Environment
      ACE             Adverse Channel Enhancements
      ACE             Alliance for Clean Energy
      ACE             American Council on Education
      ACE             Angiotensin Converting Enzyme
      ACE             Application Construction Environment
      ACE             Automated Cartridge-Evaluator
      ACE             Automatic Calibration and Equalization
      ACE             Automatic Calling Equipment
      ACE             Automatic Computing Engine
      ACEDB           A Caenorhabditis elegans Database
      ACEE            Accessor Environment Element
      ACES            Acoustic Containerless Experiment System
      ACET            Advisory Committee for the Elimination of Tuberculosis
      ACF             Access Control Field
      ACF             Administration for Children and Families
      ACF             Advanced Communications Facility
      ACF             Advanced Communications Function
      ACF             Apple Communications Framework
      ACGIH           American Conference of Governmental Industrial Hygienists
      ACGME           Accreditation Council for Graduate Medical Education
      ACH             Association for Computers and the Humanities
      ACH             Automatic Clearing House
      ACHS            Australian Council on Healthcare Standards
      ACI             Advanced Computing Initiative
      ACI             Asynchronous Communications Interface
      ACIA            Asynchronous Communications Interface Adapter
      ACIP            Advisory Committee on Immunization Practice
      ACIS            Academic Information Systems
      ACK             Acknowledgment
      ACL             Access Control List
      ACL             Advanced Computing Laboratory
      ACL             Anterior Cruciate Ligament
      ACL             Applied Chaos Laboratory
      ACL             Association of Computational Linguistics
      ACL             Automatic Cartridge Loader
      ACLIN           Access Colorado Library and Information Network
      ACLS            Advanced Cardiac Life Support
      ACM             Access Control Machine
      ACM             Association for Computing Machinery
      ACMOS           Advanced CMOS
      ACMS            Application Control And Management System
      ACN             Area Code Number
      ACOF            Attendant Control of Facilities
      ACOT            Apple Classrooms of Tomorrow
      ACP             American College of Physicians
      ACP             Ancillary Control Program
      ACP             Auxillary Control Process
      ACQNET          Acquisitions Librarians Electronic Network
      ACR             Abandon Call and Retry
      ACS             Academic Computing Service
      ACS             Access Control Set
      ACS             Advanced Communications System
      ACS             American Cancer Society
      ACS             American College of Surgeons
      ACS             Application Control Services
      ACS             Asynchronous Communication Server
      ACS             Automatic Cartridge System
      ACS             Auxiliary Core Storage
      ACSE            Association Control Service Element
      ACSNET          Academic Computing Services Network
      ACT             Accumulator
      ACT             Activity
      ACT             Application Center for Technology
      ACTG            AIDS Clinical Trials Group
      ACTH            Adrenocorticotrophic Hormone
      ACTIS           AIDS Clinical Trials Information Service
      ACTL            Advanced Communications Technologies Laboratory
      ACTLU           Active Logical Unit
      ACTPU           Active Physical Unit
      ACTRAN          Analog Computer Translator
      ACTS            Advanced Communications Technology Satellite
      ACTS            Automated Coin Toll Service
      ACTS            Automated Computer Time Service
      ACTS            Automatic Coin Telephone Service
      ACTS            Automatic Computer Telex Service
      ACTU            AIDS Clinical Trial Units
      ACU             Alarm Control Unit
      ACU             Automatic Calling Unit
      ACV             Access Control Verification
      ACV             Acyclovir
      ACV             Address Control Vector
      ACW             Alternating Continuous Waves
      AD              Administrative Domain
      AD              After Dark Image
      AD              After Date
      AD              Application Development
      AD              Authorized Dealer
      AD              Average Deviation
      AD&D            Advanced Dungeons and Dragons
      ADA             A Programming Language
      ADA             American Diabetes Association
      ADA             Applied Decision Analysis
      ADA             Automatic Data Acquisition
      ADABAS          Adaptable Data Management System
      ADAP            AIDS Drug Assistance Program
      ADAP            Alzheimer's Disease-Associated Protein
      ADAS            Advanced Directory Assistance System
      ADB             Apple Desktop Bus
      ADC             Adaptive Data Compression
      ADC             Advanced Development Center
      ADC             Aid To Dependent Children
      ADC             AIDS-Defining Condition
      ADC             Aids-Dementia Complex
      ADC             Air Data Computer
      ADC             Analog-to-Digital Converter
      ADC             Arithmetic Add With Carry
      ADC             Astronomical Data Center
      ADCCP           Advanced Data Communications Control Procedure
      ADCI            Automatic Display Call Indicator
      ADD             Arithmetic Addition (unsigned)
      ADD             Attention Deficit Disorder
      ADD             Authorized Data Distributor
      ADD             Average Daily Dose
      ADDAR           Automatic Digital Data Acquisition and Recording
      ADDR            Address
      ADDS            Advanced Data Dictionary System
      ADE             Adverse Drug Event
      ADE             Application Development Environment
      ADE             Automated Design Engineering
      ADF             Application Development Facility
      ADF             Astrophysics Data Facility
      ADF             Automatic Direction Finder
      ADFTO           Advanced Data Flow Technology Office
      ADH             Anti-Diuretic Hormone
      ADHD            Attention-Deficit Hyperactivity Disorder
      ADI             Acceptable Daily Intake
      ADI             Aids-Defining Illness
      ADI             Automatic Direction Indicator
      ADIS            Automatic Data Interchange System
      ADIX            Advanced Digital Information Exchange
      ADL             Activities of Daily Living
      ADL             Address Data Latch
      ADL             Automatic Data Link
      ADLC            Advanced Data Link Controller
      ADM             Adaptive Delta Modulation
      ADM             Add-Drop Multiplex
      ADM             Admission
      ADM             Asynchronous Disconnected Mode
      ADMIN           Administration
      ADONIS          Automatic Digital On-Line Instrumentation System
      ADP             Administrative Data Processing
      ADP             Advanced Data Processing
      ADP             Automatic Data Processing
      ADPC            Automatic Data Processing Center
      ADPCM           Adaptive Differential Pulse-Code Modulation
      ADPE            Automatic Data Processing Equipment
      ADPE            Auxiliary Data Processing Equipment
      ADPP            Automatic Data Processing Program
      ADPS            Automatic Data Processing System
      ADPS            Automatic Display and Plotting System
      ADQ             Adequate
      ADR             Acute Dystonic Reaction
      ADR             Address
      ADR             Address Register
      ADR             Adverse Drug Reaction
      ADRAC           Automatic Digital Recording and Control
      ADRC            Alzheimer's Disease Research Center
      ADRS            A Departmental Reporting System
      ADRS            Address
      ADRT            Automatic Data Recorded Transcriber
      ADS             Accurately Defined System
      ADS             Activity Data Sheet
      ADS             Address Data Strobe
      ADS             Advanced Data Systems
      ADS             Advanced Decision Systems
      ADS             Advanced Digital System
      ADS             Anatomical Dead Space
      ADS             Application Development System
      ADS             Audio Distribution System
      ADS             AutoCAD Development System
      ADS             Automatic Distribution System
      ADS             Automatic Voice System
      ADS             Auxilary Data System
      ADSF            Automatic Directional Solidification Furnace
      ADSL            Asymmetrical Digital Subscriber Loop
      ADS-TP          Administrative Data Systems-Teleprocessing System
      ADS/O           Application Development System/On-Line
      ADSP            Apple Data Stream Protocol
      ADSP            AppleTalk Data Stream Protocol
      ADT             Abstract Data Type
      ADT             Adenosine Triphosphate
      ADT             Alternate-Day Therapy
      ADT             Application Data Types
      ADT             Application Development Tools
      ADT             Automatic Data Translator
      ADTS            Automated Digital Terminal System
      ADU             Application Definition Utility
      ADU             Automatic Dialing Unit
      ADVANCE         Army Data Validation and Netting Capability Establishment
      ADWP            Application Development Without Programmers
      ADX             Automatic Data Exchange
      AE              Advanced Engine
      AE              Application Engineer
      AEA             American Electronics Association
      AEA             Atomic Energy Authority
      AEC             Architecture Engineering and Construction
      AEC             At Earliest Convenience
      AEC             Atomic Energy Commission
      AED             Algol Extended Design
      AED             Automated Engineering Design
      AEGIS           Advanced Electronic Guidance and Instrumentation
      AEID            Aeronautical Equipment Identification Designators
      AEMS            Airline Economic Modeling System
      AEP             Application Environment Profile
      AEP             Average Evoked Potential
      AER             Auditory Evoked Response
      AERG            Automatic Program Generation System
      AERO            EOS Aerosol
      AES             Automatic Electric System
      AESOP           An Evolutionary System For On-Line Processing
      AF              Audio Frequency
      AF              Auxiliary Feed
      AF              Auxiliary Flag
      AFA             Advanced Function Array
      AFADS           Automatic Force Adjustment Data System
      AFB             Acid-Fast Bacilli
      AFBG            Aortofemoral Bypass Graft
      AFC             Automatic Flight Control
      AFC             Automatic Flow Control
      AFC             Automatic Font Change
      AFC             Automatic Frequency Control
      AFD             Automatic File Distribution
      AFE             American Flight Echocardiograph
      AFE             Amniotic Fluid Embolization
      AFE             Apple File Exchange
      AFEL            Advanced Free-Electron Laser
      AFG             Automatic Function Generator
      AFGL            Air Force Geophysics Laboratory
      AFIPS           American Federation of Information Processing Societies
      AFIT            Air Force Institute of Technology
      AFITV           Air Force Instrumented Test Vehicle
      AFK             Away From Keyboard
      AFL             Abstract Family of Languages
      AFLC            Air Force Logistics Command
      AFM             Adobe Font Manager
      AFM             Adobe Font Metrics
      AFN             Access Feeder Note
      AFO             Advanced File Organization
      AFOSR           Air Force Office of Scientific Research
      AFP             Alpha Feto Protein
      AFP             Appletalk File Protocol
      AFP             Air Force Program
      AFR             Automatic Field Recognition
      AFS             Andrew File System
      AFT             Active File Table
      AFT             Advanced Forest Technologies Program
      AFT             Asynchronous Framing Technique
      AFTOMS          Air Force Technical Order Management System
      AG              Adjutant General
      AGA             Accelerated Growth Area
      AGA             Appropriate For Gestational Age
      AGC             Automatic Gain Control
      AGD             Agar Gel Diffusion
      AGL             Acute Granulocytic Leukemia
      AGM             African Green Monkey
      AGN             Active Galactic Nucleus
      AGN             Acute Glomerular Nephritis
      AGT             Abnormal Glucose Tolerance
      AGTT            Abnormal Glucose Tolerance Test
      AGVHD           Acute Graft Versus Host Disease
      AH              Ampere-Hour
      AHA             American Heart Association
      AHA             Autoimmune Hemolytic Anemia
      AHA             Arbitrary Handshake Authentication
      AHCPR           Agency for Health Care Policy and Research
      AHF             Antihemophilic Factor
      AHG             Antihemophilic Globulin
      AHIMA           American Health Information Management Association
      AHM             Ambulatory Holter Monitoring
      AHPL            A Hardware Programming Language
      AI              Adobe Illustrator
      AI              Amnesty International
      AI              Analog Input
      AI              Artificial Intelligence
      AI/ES           Artificial Intelligence/Expert Systems
      AIA             Application Integration Architecture
      AIA             Aspirin-Induced Asthma
      AIAA            American Institute of Aeronautics and Astronautics
      AIC             Automatic Intercept Center
      AID             Agency for International Development
      AID             Automatic Implantable Defibrillator
      AIDO            Automatic Identification of Outward Dialed Calls
      AIDS            Acquired Immune Deficiency Syndrome
      AIDS            Administrative Information Data System
      AIDS            Automatic Integrated Debugging System
      AIG             Address-Indicating Groups
      AIHA            Autoimmune Hemolytic Anemia
      AIIM            Association for Information and Image Management
      AIM             Acuity Index Method
      AIM             Advanced Information Management
      AIM             Advanced Informatics in Medicine
      AIM             Artificial Intelligence In Medicine
      AIM             Astrometric Interferometry
      AIMBE           American Institute for Medical and Biologic Engineering
      AIME            Artificial Intelligence in Medicine Europe
      AIMS            Advanced Inventory Management System
      AIN             Advanced Intelligence Network
      AIOCS           Automated Industry and Occupation Coding System
      AIOD            Automatic Identification of Outward Dialing
      AIP             Acute Intermittent Porphyria
      AIP             American Institute of Physics
      AIPS            Astronomical Image Processing System
      AIRCON          Automated Information and Reservations Computer
      AIRS            Automatic Information Retrieval System
      AIS             Action Item System
      AIS             Alarm Indication Signals
      AIS             Anesthesia Information System
      AIS             Automatic Intercept System
      AISP            Association of Information Systems Professionals
      AIT             Advanced Information Technology
      AITRC           Applied Information Technologies Research Center
      AIX             Advanced Interactive Executive
      AJ              Astronomical Journal
      AJBS            Association of Japanese Business Studies
      AJCC            American Joint Commission on Cancer
      AJPO            ADA Joint Project Office
      AKA             Also Known As
      AKS             HIV-Associated Kaposi's Sarcoma
      AL              Assembly Language
      ALA             Address Latch Attachment
      ALA             American Lung Association
      ALAP            AppleTalk Link Access Protocol
      ALAP            As-Late-As-Possible
      ALB             Albumin
      ALC             Airline Link Control
      ALC             Assembly Language Coding
      ALC             Automatic Level Control
      ALC             Automatic Load Control
      ALD             Analog Line Driver
      ALE             Address Lifetime Expectations
      ALEPH           Automated Library Expandable Program - Hebrew University
      ALEX            Automated Labor Exchange
      ALEX            Automatic Login Executor
      ALEXIS          Array of Low Energy X-Ray Imaging Sensors
      ALGOL           Algorithmic Language
      ALI             Automatic Location Indentification
      ALL             Acute Lymphocytic Leukemia
      ALL             Artificial Language Laboratory
      ALM             AppWare Loadable Module
      ALMMRS          Automated Land And Mineral Records System
      ALMS            Atomic Line Molecular Spectroscopy
      ALP             Assembler Language Programming
      ALPO            Association of Lunar and Planetary Observers
      ALPS            Advanced Loan Processsing System
      ALPS            Associated Logic Parallel System
      ALPS            Automated Library Processing Service
      ALRU            Automatic Line Record Update
      ALS             ADA Language System
      ALS             Advanced Launch System
      ALS             Advanced Legal Software
      ALS             Amyotrophic Lateral Sclerosis
      ALS             Asian Language Services
      ALS             Automated List Service
      ALSEP           Apollo Lunar Surface Experimental Package
      ALT             Alternate
      ALT             Altitude
      ALTE            Apparent Life-Threatening Event
      ALTEL           Association of Long-Distance Telephone Companies
      ALU             Arithmetic Logic Unit
      AM              Administrative Management
      AM              Amplitude Modulation
      AM              Auxiliary Module
      AM-DSB          Amplitude Modulation-Double Sideband
      AMA             Against Medical Advice
      AMA             Automatic Message Accounting
      AMACS           Automatic Message Accounting Collection System
      AMARC           Automatic Message Accounting Recording Center
      AMASE           Automatic Message Accounting Standard Entry
      AMAT            Automatic Message Accounting Transmitter
      AMB             Ambulate
      AMC             Area Management Center
      AMC             Arm Muscle Circumference
      AMC             Automatic Message Counting
      AMC             Automatic Modulation Control
      AMD             Active Matrix Display
      AMD             Advanced Micro Devices Inc 
      AmFAR           American Foundation for AIDS Research
      AMI             Access Method Interface
      AMI             Acute Myocardial Infarction
      AMI             Alternate Mark Inversion Code
      AMI             American Microsystems Incorporated
      AMIA            American Medical Informatics Association
      AMIA            Australian Medical Informatics Association
      AMIGO           Advanced Messaging In Groups
      AMIS            Agile Manufacturing Information System
      AMIS            Atari Message and Information System
      AMIS            Audio Message Interface Standard
      AML             Acute Myelogenous Leukemia
      AMM             Area Manufacturing Manager
      AMOS            Advanced Mortage On-Line System
      AMOS            Air Force Maui Optical Station
      AMP             Ampere
      AMPP            Advanced Materials and Processing Program
      AMPS            Advanced Mobile Phone Service
      AMPS            Analog MultiPoint Service
      AMPS            Automatic Message Processing System
      AMR             Automated Management Reports
      AMR             Automatic Message-Registering
      AMR             Automatic Meter Reading
      AMRD            Automatic Message-Routing Device
      AMS             Access Methods Services
      AMS             Acute Mountain Sickness
      AMS             Altered Mental Status
      AMS             Andrew Message System
      AMS             Applied Mathematical Sciences
      AMS             Archival Management System
      AMSC            Acquisition Management Systems Control Number
      AMSM            Access Methods Services Macros
      AMSSB           Audio Modulation Single Sideband
      AMSU            Access Methods Services Utilities
      AMT             Active Memory Technology
      AMT             Amount
      AMTIC           Ambient Monitoring Technology Information Center
      AMWI            Active Message Waiting Indicator
      AN              Associated Number
      ANA             Automatic Number Announcement
      ANC             Antenatal Clinic
      ANCHODD         Australian National Clearinghouse on Drug Development
      ANCOVA          Analysis of Covariance
      AND             Bitwise Logical AND
      ANDF            Architecture Neutral Distributed Format
      ANDOS           All or Nothing Disclosure of Secrets
      ANF             Automatic Number Forwarding
      ANG             Advanced Networking Group
      ANI             Automatic Number Identification
      ANIF            Automatic Number Identification Failure
      ANL             Argonne National Laboratory
      ANLL            Acute Non-Lymphocytic Leukemia
      ANMP            Account Network Management Program
      ANOVA           Analysis of Variance
      ANS             American National Standard
      ANSI            American National Standards Institute
      ANT             Active Name Table
      ANU             Australian National University
      ANV             Anticipatory Nausea and Vomiting
      AO              Acousto-optic
      AO              Acridine Orange
      AO              Amplifier Output
      AOA             Abort-Once-Around
      AOB             Alcohol On Breath
      AOC             Automatic Output Control
      AOCE            Apple Open Collaboration Environment
      AOCR            Advanced Optical Character Recognition
      AOCS            Attitude and Orbit Control System
      AODM            Adult-Onset Diabetes Mellitus
      AOI             Area of Interest
      AOM             Area Operations Manager
      AOP             Abnormal Operating Procedure
      AOS             Academic Operating System
      AOS             Add or Subtract
      AOS             Alternate Operator Service
      AOS             Automated Office System
      AOSP            Automatic Operating and Scheduling Program
      AOSS            Auxilliary Operator Service System
      AP              Acquisition Plan
      AP              Adjunct Processor
      AP              Administrative Procedure
      AP              Aerosolized Pentamidine
      AP              All Points
      AP              Applications Program
      AP              Attached Processor
      APA             Adaptive Packet Assembly
      APA             All Points Addressable
      APACHE          Acute Physiology And Chronic Health Evaluation
      APAR            Authorized Program Analysis Report
      APC             Advanced Professional Computer
      APC             Association for Progressive Communications
      APC             Automatic Phase Control
      APCG            Advanced Protein Crystal Growth
      APCUG           Association of PC Users Group Summit Meeting
      APD             Advanced Planning Division
      APD             Angular Position Digitizer
      APDA            Apple Programmers and Developers Association
      APDB            AudioVisual Program Development Branch
      APDU            Application Protocol Data Unit
      APE             Aurora Photography Experiment
      APEC            Automated Procedures For Engineering Consultants
      APF             Advanced Printer Functions
      APF             All Personal Identification Numbers Fail
      APF             All PIN's Fail
      APF             Application Program Function
      APF             Authorized Program Facility
      APG             Application Program Generator
      APG             Automatic Priority Grouping
      APHA            American Public Health Association
      API             All-Purpose Interface
      API             Application Program Interface
      APICS           American Production and Inventory Control
      APL             A Programming Language
      APL             Algorithmic Programming Language
      APL             Average Power Laser
      APM             Ascent Particle Monitor
      APM             Advanced Power Management
      APN             Academic Position Network
      APO             Army Post Office
      APOTA           Automatic Positioning Telemetering Antenna
      APP             Application
      APP             Application Portability Profile
      APP             Auxiliary Power Plant
      APPC            Advanced Peer-to-Peer Communications
      APPC            Advanced Program-to-Program Communications
      APPI            Advanced Peer-to-Peer Internetworking
      APPIX           Automated Part and Product Information
      APPLI           Assisting Primary Care Physicians with Lipid-Lowering Interventions
      APPN            Advanced Peer-to-Peer Networking
      APR             Alternate Path Retry
      APRG            Automatic Program Generation System
      APRP            Adaptive Pattern Recognition Processing
      APS             Acute Physiology Score
      APS             Asynchronous Protocol Specification
      APS             Automatic Protection Switch
      APSE            ADA Programming Support Environment
      APSE            Application Program Support Environment
      APSM            Automatic Patient Symptom Monitor
      APT             All-Purpose Terminal
      APT             American Phone Terrorists
      APT             Asymmetrical Power Transfer
      APT             Automatic Picture Transmission
      APT             Automatically Programmed Tools
      APTI            Air Pollution Training Institute
      APTS            Automatic Picture Transmission System
      AQL             Acceptance Quality Level
      AQS             Automatic Quote System
      AR              Address Register
      ARAM            Analog Random Access Memory
      ARAP            Apple Remote Access Protocol
      ARB             Application Review Board
      ARC             Adaptor Return Code
      ARC             Aids-Related Complex
      ARC             American Red Cross
      ARC             Ames Research Center
      ARC             Attached Resource Computer
      ARC             Automatic Radio Control
      ARC             Automatic Relay Calculator
      ARC             Automatic Remote Control
      ARCnet          Attached Resource Computer Network
      ARCS            Advanced Reconfigurable Computer System
      ARCSS           Arctic System Science Program
      ARD             Acute Respiratory Disease
      ARD             Advanced Resources Data
      ARD             Advanced Resources Development
      ARDS            Adult Respiratory Distress Syndrome
      ARE             Advanced Real-Time Executive
      AREP            Automated Reliability Estimation Program
      ARF             Acute Renal Failure
      ARF             Acute Respiratory Failure
      ARF             Acute Rheumatic Fever
      ARF             American Rehabilitation Foundation
      ARIA            American Risk and Insurance Association
      ARIS            Audichron Recorded Information System
      ARL             Acceptance Reliability Level
      ARL             Army Research Laboratory
      ARL             Association of Research Libraries
      ARLL            Advanced Run-Length-Limited
      ARM             Advanced RISC Machine
      ARM             Area Revenue Manager
      ARM             Assessment of Risk and Methodologies
      ARM             Automated Records Management
      ARM             Automatic Reel Mounting
      ARM             Automatic Route Management
      ARMIS           Automated Report Management Information System
      ARMS            Automated Records Management System
      ARNO            Atlanta Regional Network Organization
      ARP             Address Resolution Protocol
      ARP             Automated Reasoning Program
      ARPA            Advanced Research Projects Agency
      ARPANET         Advanced Research Projects Agency Network
      ARPDP           Association of Rehabilitation Programs in Data Processing
      ARQ             Automated Request for Repeat
      ARQ             Automatic Re-Transmission Queue
      ARQ             Automatic Repeat Request
      ARR             Accounting Rate of Return
      ARRS            Association of Radio Reading Services
      ARS             Acute Radiation Syndrome
      ARS             Acute Retroviral Syndrome
      ARS             Advance Record System
      ARS             Agricultural Research Service
      ARS             Automatic Route Selection
      ARSA            Airport Radar Service Area
      ARSB            Automated Repair Service Bureau
      ART             Active Reference Table
      ART             Automatic Reporting Telephone
      ARTCC           Air Route Traffic Control Center
      ARTEWG          Ada Runtime Environment Working Group
      ARTFL           American Research on the Treasury of the French Language
      ARTI            Asynchronous Receiver/Transmitter Interface
      ARU             Audio Response Unit
      ARV             Aids-Associated Retrovirus
      ARV             AIDS-Related Virus
      AS              Add/Subtract
      AS              Administrative Support
      AS              AppleShare
      AS              Application Specialist
      AS              Application System
      ASA             Acetylsalicylic Acid
      ASA             American Society of Anesthesiologists
      ASA             American Standards Association
      ASAD            Advanced Structured Analysis and Design
      ASAP            As Soon As Possible
      ASB             Automatic Speed Buffering
      ASC             Accredited Standards Committee
      ASC             Advanced Scientific Computer
      ASC             Altered States of Consciousness
      ASC             American Satellite Company
      ASC             American Society for Cybernetics
      ASC             Automatic Selectivity Control
      ASC             Automatic Synchronized Control
      ASC             Average System Cost
      ASCC            Automatic Sequence Controlled Calculator
      ASCE            American Society of Civil Engineers
      ASCII           American Standard Code for Information Interchange
      ASCLA           Association of Specialized and Cooperative Library Agencies
      ASCVD           Arteriosclerotic Coronary Vascular Disease
      ASD             Advanced Semiconductor Development
      ASD             Affective Spectrum Disorder
      ASD             Atrial Septal Defect
      ASD             Automatic Synchronized Discriminator
      ASDSP           Application-Specific Digital Signal Processor
      ASE             Application Service Element
      ASEDA           Aboriginal Studies Electronic Data Archive
      ASEDD           Arizona State Economic Development Database
      ASEM            Assembly of Station by Extravehicular Activity Methods
      ASG             Automated Sciences Group
      ASHD            Arteriosclerotic Heart Disease
      ASHE            Association for the Study of Higher Education
      ASI             Addiction Severity Index
      ASI             Automatic System Installation
      ASIA            American Spinal Injury Association
      ASIC            Application System Information Center
      ASIC            Application-Specific Integrated Circuit
      ASID            Access/Synchronization of the Internet Directories
      ASID            Address Space Identifier
      ASIEP           Autism Screening Instrument for Educational Planning
      ASIM            American Society of Internal Medicine
      ASIS            Ada Semantic Interface Specification
      ASIT            Advanced Security and Identification Technology
      ASK             Akademische Software Kooperation
      ASK             Amplitude Shift-Keying
      ASK             Automatic Shift-Keying
      ASL             Adaptive Speed Leveling
      ASL             American Sign Language
      ASL             Available Space List
      ASLT            Advanced Solid Logic Technology
      ASM             Address Space Manager
      ASM             Allocation Strategy Module
      ASM             Analog Subscriber Module
      ASM             Assembler
      ASM             Assembler Language File
      ASM             Assembly
      ASM             Association of Systems Management
      ASM             Auxilliary Storage Manager
      ASME            American Society of Mechanical Engineers
      ASN             Abstract Syntax Notation
      ASN             Autonomous System Numbers
      ASN             Average Sample Number
      ASO             Aids Service Organization
      ASOC            Administrative Service Oversight Center
      ASP             Aggregated Switch Procurement
      ASP             Amplified Sequence Polymorphisms
      ASP             AppleTalk Session Protocol
      ASP             Archival Storage Protector
      ASP             Asynchronous Protocol
      ASP             Attached Support Processor
      ASP             Attitude Sensor Package
      ASP             Automatic Switching Panel
      ASP             Auxilliary Storage Pool
      ASPE            Assistant Secretary for Planning and Evaluation
      ASPEN           Automated Speech Exchange Network
      ASPEN           Automatic System for Performance Evaluation of the Network
      ASPI            Advanced SCSI Programming Interface
      ASPS            Advanced Signal-Processing System
      ASR             Access Service Request
      ASR             Automatic Send and Receive
      ASR             Automatic Speech-Recognition
      ASR             Auxilliary Storage Restore
      ASSET           Asset Source for Software Engineering Technology
      ASSP            Application Specific Standard Part
      AST             Active Segment Table
      AST             Applied System Technology
      AST             Astronomy Team
      AST             Atlantic Standard Time
      ASTEX           Automated Storage Expert
      ASTM            American Society for Testing and Materials
      ASV             American Standard Version
      ASV             Automatic Self-Verification
      ASV             Average System Value
      ASW             Application Software
      AT              Acceptance Test
      AT              Advanced Technology
      AT              Automatic Ticketing
      AT&T            American Telephone and Telegraph Company
      ATA             Airport Traffic Area
      ATA             Ambulatory Treatment Area
      ATA             American Technocratic Association
      ATA             AT Attachment
      ATA             Aurintricarboxylic Acid
      ATA             Automatic Trouble-Analysis
      ATB             All Trunks Busy
      ATC             Applied Technology Coucil
      ATC             Around-The-Clock
      ATC             Automatic Transmission Control
      ATCP            AppleTalk Control Protocol
      ATCC            American Type Culture Collection
      ATCRB           Air-Traffic Control Radar Beacon
      ATD             Air Transport Division
      ATD             Authorized Terminal Distributor
      ATDI            Assistive Technology Database Interface
      ATDM            Asynchronous Time-Division Multiplexing
      ATDP            Attention Dial Pulse
      ATDRS           Advanced Tracking and Data Relay Satellite
      ATDT            Attention Dial Tone
      ATE             ADA Training Environment
      ATE             Automated Test Equipment
      ATEC            Average Total Episode Cost
      ATG             Advanced Technology Group
      ATH             Abbreviated Trouble History
      ATH             Attention Hang-Up
      ATI             Automatic Test Inhibit
      ATICS           Automated Toll Integrity Checking System
      ATIS            Automatic Terminal Information Service
      ATK             Andrew Toolkit
      ATL             Automated Tape Library
      ATL             Automated Test Library
      ATLS            Automated Trade Library Service
      ATLAS           Atmospheric Laboratory for Applications and Science
      ATM             Adobe Type Manager
      ATM             Advanced Transmission Method
      ATM             Asynchronous Transfer Mode
      ATM             Automated Teller Machine
      ATMI            Acute Transmural Myocardial Infarction
      ATMS            Administrative Terminal Management System
      ATMS            Advanced Technical Management System
      ATMS            Automated Trunk Measurement System
      ATMS            Automatic Transmission Measuring System
      ATN             Attention
      ATN             Automated Test Network
      ATNA            Annual Training Needs Assessment
      ATO             Abort-To-Orbit
      ATOS            Air Traffic Operations Service
      ATOS            Automated Technical Order System
      ATP             Acceptance Test Procedure
      ATP             All Tests Pass
      ATP             AppleTalk Transaction Protocol
      ATPG            Automatic Test Program Generation
      ATR             Advanced Technology Printing
      ATR             Advanced Test Reactor
      ATR             Automatic Terminal Recognition
      ATRS            Automated Trouble Reporting System
      ATS             Administrative Terminal System
      ATS             American Thoracic Society
      ATS             Apple Terminal Services
      ATS             Automated Telemetry System
      ATS             Automatic Test System
      ATSE            Application Timesharing Software Engineering
      ATT             Advanced Transport Telematics
      ATTC            Automatic Test and Control Circuit
      ATTC            Automatic Transmission Test and Control
      ATTIC           Alternative Treatment Technology Information Center
      ATTIS           American Telephone and Telegraph Information Systems
      ATTN            Attention
      ATU             Awaiting Trial Unit
      ATV             Advanced Television
      AUDIT           Automated Data Input Terminal
      AUI             Attachment Unit Interface
      AUIC            Area Under The Inhibition Vs  Time Curve
      AUL             Acute Undifferentiated Leukemia
      AULS            Atlantic Union List of Serials
      AUP             Acceptable Use Policy
      AUP             Access Unit Port
      AURA            Association of Universities for Research in Astronomy
      AUSSAT          Australian Communication Satellite
      AUV             Autonomous Underwater Vehicle
      AUX             Auxiliary File
      AVA             Audio-Visual Authoring
      AVC             Audio-Visual Connection
      AVD             Alternate Voice-Data
      AVE             Automatic Volume Expansion
      AVEU            AIDS Vaccine Evaluation Units
      AVI             Audio-Visual Interleaved
      AVK             Audio-Visual Kernel
      AVM             Arteriovenous Malformation
      AVR             Automatic Volume Recognition
      AVS             Application Visualization System
      AVT             Architecture Verification Test
      AVT             Audio-Video Transport
      AWACS           Airborne Warnings And Control Systems
      AWK             Aho Weinberger Kernighan
      AWP             Average Wholesale Price
      AWST            Aviation Week and Space Technology
      AWTG            Atomic Weapons Training Group
      AX              Architecture Extended
      AX              Automatic Transmission
      AXAF            Advanced X-Ray Astrophysics Facility
      AXAF-I          Advanced X-Ray Astrophysics Facility Imager
      AZT             Azathioprine
      AZT             Azidothymidine
      AZT             Zidovudine
      B               Binary
      B               Bit
      B               Blank
      B               Block
      BA              Binary Add
      BAC             Binary Asymmetrical Channel
      BAC             Biotechnology Advisory Committee
      BAC             Blood Alcohol Concentration
      BACE            Basic Automatic Checkout Equipment
      BACT            Best Available Control Technology
      BAD             Bipolar Affective Disorder
      BADC            Binary Asymmetric Dependent Channel
      BAEP            Brainstem Auditory Evoked Potential
      BAER            Brainstem Auditory Evoked Response
      BAK             Backup
      BAK             Binary Adaptation Kit
      BAL             Balance
      BAL             Basic Assembly Language
      BAL             Blood Alcohol Level
      BAM             Basic Access Method
      BAM             Boyan Action Module
      BAMP            Build Ada Main Program
      BANCS           Bell Administrative Network Communications System
      BAP             Band Amplitude Product
      BAP             Basic Assembly Program
      BAP             Benefits Analysis Program
      BAR             Buffer Address Register
      BAREPP          Bay Area Earthquake Preparedness Project
      BARRnet         Bay Area Regional Research Network
      BAS             Basic Language
      BAS             Basic Language File
      BAS             Basic Source Code
      BASE            Bank America Systems Engineering
      BASIC           Bank Automated Service Information Center
      BASIC           Basic Automatic Stored Instruction Computer
      BASIC           Beginner's All-Purpose Symbolic Instruction Code
      BAT             Batch File
      BAT             Batch Processing
      BAT             Best Available Technology
      BAT             Blood Alcohol Test
      BBA             Budget By Account
      BBB             Blood Brain Barrier
      BBB             Bundle Branch Block
      BBBBS           Badboy's Better Bulletin Board System
      BBD             Beethoven Bibliography Database
      BBL             Bibliographic File
      BBM             Break Before Make
      BBRC            Brazilian Bioinformatics Resource Center
      BBRD            Broadband Radiation Detector
      BBS             Bulletin-Board System
      BBT             Basal Body Temperature
      BBU             Battery Back-Up
      BBXRT           Broad Band X-Ray Telescope
      BC              Binary Code
      BC              Broadcast Control
      BCAA            Branched Chain Amino Acids
      BCC             Basal Cell Carcinoma
      BCC             Blind Carbon Copy
      BCC             Block Check Character
      BCC             Blocked Call Cleared
      BCCD            Buried-Channel Charge-Coupled Devices
      BCD             Barcode Decal
      BCD             Binary-Coded Decimal
      BCD             Blocked Call Delayed
      BCDF            B-cell Differentiation Factor
      BCDIC           Binary-Coded Decimal Interchange Code
      BCFSK           Binary-Coded Frequency Shift Keying
      BCG             Bacillus Callmette-Guerin
      BCG             Business Center Group
      BCI             Binary-Coded Information
      BCI             Broadcast Interference
      BCL             Batch Command Language
      BCL             Biomedical Computer Laboratory
      BCM             Basic Capability Module
      BCM             Basic Control Monitor
      BCM             Body Cell Mass
      BCMSV           Brotherton Collection Manuscript Verse
      BCNU            Be Seeing You
      BCO             Binary Coded Octal
      BCP             Binary Communications Protocol
      BCP             Birth Control Pills
      BCP             Broadband Communications Product
      BCP             Bulk Copy Program
      BCP             Byte Control Protocol
      BCPL            Basic-Combined Programming Language
      BCPL            Bootstrap Combined Programming Language
      BCR             Bell Communications Research
      BCR             Breakpoint Cluster Region
      BCR             Business Card Reader
      BCR             Byte Count Register
      BCRI            Baltimore Community Research Initiative
      BCRT            Bright Cathode Ray Tube
      BCS             Battered Child Syndrome
      BCS             Binary Compatibility Standard
      BCS             Boston Computer Society
      BCS             British Computer Society
      BCS             Business Communication Systems
      BCU             Baseline Control Unit
      BCU             Binary Counting Unit
      BCU             Block Control Unit
      BCW             Buffer Control Ward
      BD              Binary Decoder
      BD              Binary Divide
      BD              Binary to Decimal
      BDA             Birthday
      BDAM            Basic Direct Access Method
      BDC             Binary Decimal Counter
      BDC             Boston Development Center
      BDCS            Broadband Digital Cross-Connect System
      BDD             Binary To Decimal Decoder
      BDES            Batch Data Exchange Services
      BDF             Binary Distribution Format
      BDL             Below Detectable Limits
      BDOS            Basic Disk Operating System
      BDP             Business Data Processing
      BDS             Basic Data Service
      BDS             Bioreactor Demonstration System
      BDT             Base de Dados Tropical
      BDT             Billing Data Transmitter
      BDT             Bulk Data Transfer
      BDU             Basic Display Unit
      BE              Band Elimination
      BE              Base Excess
      BE              Below Or Equal
      BEC             Bus Extension Card
      BED             Bus Extension Driver
      BEE             Basal Energy Expenditure
      BEF             Band Elimination Filter
      BELLCORE        Bell Communications Research
      BEN             Botanical Electronic News
      BEP             Brainstem Evoked Potential
      BER             Basic Encoding Rules
      BER             Bit Error Rate
      BER             Bus Extension Receiver
      BEX             Broadband Exchange
      BF              Bad Flag
      BF              Biofeedback
      BF              Brought Forward
      BFA             Baby For Adoption
      BFO             Beat Frequency Oscillator
      BFP             Biologic False Positive
      BFT             Binary File Transfer
      BFTP            Batch FTP
      BGE             Branch If Greater Or Equal
      BGI             Borland Graphic Interface
      BGID            Project Big Ideas Forum
      BGP             Border Gateway Protocol
      BGT             Branch If Greater Than
      BGU             Business Graphics Utility
      BH              Black Hole
      BH              Block Handler
      BHC             Busy-Hour Calls
      BHCA            Busy-Hour Call-Attempts
      BHI             Branch If Higher
      BHIS            Branch If Higher Or Same
      BHR             Block Handling Routine
      BI              Binary Input
      BIA             Bioelectrical Impedance Analysis
      BIB             Bibliography
      BICU            Bus Interface Control Unit
      BIFF            Binary Interchange File Format
      BIL             Bilateral
      BIM             Basic Industry Marketing
      BIM             Beginning of Information Marker
      BIMDA           Bioprocessing with the Materials Dispersion Apparatus
      BIMS            Business Inventory Managment System
      BIN             Baylor Information Network
      BIN             Binary
      BIN             Overlay
      BINAC           Binary Automatic Computer
      BIND            Berkeley Internet Name Domain
      BIOS            Basic Input-Output System
      BIPCO           Built-In-Place Components
      BIPED           Business Education for the Disabled
      BIR             BITNET Institutional Representative
      BIR             Bus Interface Register
      BIRS            Basic Indexing and Retrieval System
      BIS             Business Information System
      BISAM           Basic Indexed Sequential Access Method
      BISDN           Broadband Integrated Services Digital Network
      BISP            Business Information System Program
      BISYN           Binary Synchronous Control protocol
      BIT             Binary Digit
      BIT             Built-In Test Objectives
      BIT             Built-in Testing
      BIT             Business Information Terminal
      BITE            Body Image Test Estimate
      BITN            Bilateral Iterative Network
      BITNET          Because It's Time Network
      BITNIC          BITNET Network Information Center
      BITNIS          Batch BITNET/Internet
      BITS            Biotechnology Information Toolkit Software
      BIV             Bovine Immunodeficiency-like Virus
      BIVAR           Bivariant Function Generator
      BIX             Byte Information Exchange
      BJF             Batch Job Foreground
      BJM             Between Job Monitor
      BK!             Backup
      BKSP            Backspace
      BL              Backlit
      BL              Blank
      BLAB            Biomedical Library Acquisitions Bulletin
      BLAISE          British Library Automated Information Service
      BLAST           Battlefield Laser Acquisition Sensor Test
      BLAST           Blocked Asynchronous Transmission
      BLC             Boston Library Consortium
      BLD             BASIC Bload Graphics
      BLE             Branch If Less Or Equal
      BLERT           Block Error Rate Test
      BLF             Bubble Lattice File
      BLF             Busy Line Field
      BLK             Block
      BLKSZE          Block Size
      BLL             Blood Lead Levels
      BLNK            Blank
      BLOB            Binary Large Object
      BLOPS           Billion Floating Point Instructions Per Second
      BLOS            Branch If Lower Or Same
      BLS             Basic Life Support
      BLS             Business Listing Service
      BLT             Basic Language Translator
      BLT             Block Transfer
      BLU             Basic Link Unit
      BLU             Basic Logic Unit
      BLV             Bovine Leukemia Virus
      BLV             Busy Line Verification
      BM              Basal Metabolism
      BM              Buffer Module
      BMA             Bone Marrow Aspirate
      BMAS            Business Management Accounting System
      BMAX            Backward-Maximum-Spanning Rules
      BMC             Basic Monthly Charge
      BMC             Basic Multiplexer Channel
      BMD             Batch Mode Display
      BMD             Biomedical
      BMD             Bone Mineral Density
      BMI             Batch Mode Input
      BMI             Body Mass Index
      BMI             Branch If Minus
      BMIC            Bus Master Interface Chip
      BMO             Ballistic Missile Office
      BMO             Birth Month
      BMP             Batch Message Processing Program
      BMP             Best Management Practice
      BMP             Bit-Mapped
      BMP             Bitmap Graphics
      BMP             Bitmap Graphics File
      BMR             Basal Metabolic Rate
      BMR             Batch Mode Release
      BMS             Basic Mapping Support
      BMT             Bilateral Myringotomy and Tubes
      BMT             Bone Marrow Transplantation
      BMU             Basic Measurement Unit
      BMWG            Benchmarking Working Group
      BN              Binary Number
      BNE             Branch If Not Equal
      BNG             Branch No Group
      BNL             Brookhaven National Laboratory
      BNN             Boundary Network Node
      BNS             Billed Number Screening
      BNS             Binary Number System
      BNU             Basic Networking Utilities
      BO              Beat Oscillator
      BOB             Break-Out Box
      BOC             Bell Operating Company
      BOD             Board of Directors
      BOF             Beginning of File
      BOI             Branch Output Interrupt
      BOING           Bio-Oriented Internet Gophers
      BOIP            Basis of Issue Plan
      BOIS            Business Office Information Systems
      BOLD            Bibliographic On-Line Display
      BOM             Basic Operating Monitor
      BOM             Beginning of Message
      BOM             Bill of Materials
      BOM             Bureau of Mines
      BOMP            Bill of Materials Processor
      BOO             Bill of Organization
      BOOTP           Bootstrap Protocol
      BOP             Binary Oriented Protocol
      BOP             Binary Output Program
      BOP             Byte-Oriented Protocol
      BOR             Basic Output Report
      BORAM           Block Oriented Random Access Memory
      BOS             Background Operating System
      BOS             Basic Operating System
      BOS             Branch Office System
      BOS             Business and Office Systems
      BOSE            Business and Office Systems Engineering
      BOSI            Body of Safety Information
      BOSS            Billing and Order Support System
      BOSS            Business-Oriented Software System
      BOT             Beginning-of-Tape
      BOT             Bit-Optimization Query Technology
      BOV             Beginning-of-Volume
      BP              Batch Processing
      BPA             Burst Promoting Activity
      BPAM            Basic Partitioned Access Method
      BPB             BIOS Parameter Block
      BPCS            Business Planning and Control System
      BPE             Basic Programming Extensions
      BPH             Benign Prostatic Hypertrophy
      BPHC            Bureau of Primary Health Care
      BPI             Bits-Per-Inch
      BPL             Beta Propriolactone
      BPL             Branch If Plus
      BPM             Batch Processing Monitor
      BPM             Beats Per Minute
      BPM             Breaths per Minute
      BPM             Business Planning Manager
      BPP             Bits-per-Pixel
      BPS             Basic Programming System
      BPS             Bits-Per-Second
      BPSK            Binary Phase-Shift Keying
      BQS             Berkeley Quality Software
      BR              Base Register
      BR              Break Request
      BRADS           Business Report Application Development System (IBM)
      BRB             Be Right Back
      BRB             Bright Red Blood
      BRC             Branch Conditional
      BRD             Binary Read
      BRFSS           Behavioral Risk Factor Surveillance System
      BRG             Baud Rate Generator
      BRG             Business Research Group
      BRI             Basic Rate Interface
      BRIC            Biological Research In Canisters
      BRM             Basic Remote Module
      BRM             Biologic Response Modifier
      BRS             Bibliographic Research Service
      BRS             Bibliographic Retrieval Service
      BRS             Big Red Switch
      BRS             Break Request Signal
      BRTA            Business Responds to AIDS
      BRTP            Biomedical Research Technology Program
      BRU             Branch Unconditional
      BS              Backspace
      BS              Banded Signaling
      BS              Branch Standard
      BS              Broadcast Satellite
      BS              Business System
      BSA             Balance Sheet Account
      BSAC            Biotechnology Science Advisory Committee
      BSAM            Basic Sequential Access Method
      BSB             British Satellite Broadcasting
      BSC             Binary Symmetric Channel
      BSC             Binary Synchronous Communication
      BSC             Boyan Script File
      BSC             Business Service Center
      BSD             Berkeley Software Distribution
      BSD             Berkeley Standard Distribution
      BSD             Berkeley System Distribution
      BSDC            Binary Symmetric Dependent Channel
      BSE             Basic Service Element
      BSE             Breast Self-Exam
      BSEP            Brainstem Evoked Potential
      BSER            Brainstem Evoked Response
      BSF             Bit Scan Forward
      BSL             Biosafety Level
      BSL             Blood Sugar Level
      BSN             Back-End Storage Network
      BSP             Bell System Practice
      BSP             Business Systems Planning
      BSR             Bit Scan Reverse
      BSR             Bureau of Standards Review
      BSRFS           Bell System Reference Frequency Standard
      BST             Basic Services Terminal
      BST             Beam Switching Tube
      BSTJ            Bell System Technical Journal
      BSU             Bowie State University
      BSV             BASIC Graphics File
      BSWAP           Byte Swap
      BSY             Busy
      BSYNC           Binary Synchronous Communications
      BT              Bi-Tronics
      BT              Bit Test
      BT              Bus Terminator
      BTAG            Biological Technical Assistance Group
      BTAM            Basic Telecommunications Access Method
      BTAM            Basic Terminal Access Method
      BTC             Bit Test and Complement
      BTD             Binary To Decimal
      BTDL            Basic Transient Diode Logic
      BTL             Beginning Tape Label
      BTL             Bell Telephone Laboratories
      BTL             Bilateral Tubal Ligation
      BTN             Billing Telephone Number
      BTP             Batch Transfer Program
      BTS             Batch Terminal Simulator
      BTS             Burster-Trimmer-Stacker
      BTSP            Bootstrap
      BTSS            Basic Time Sharing System
      BTU             Basic Transmission Unit
      BTU             British Thermal Unit
      BTW             By-The-Way
      BUF             Buffer
      BUFA            Baby Up For Adoption
      BUIC            Back Up Interceptor Control
      BUS             Basic Utility System
      BVAPP           Billing Verification and Authorization for
      BVC             Billing Validation Center
      BVCP            Banyan Vines Control Protocol
      BVS             Basic Voice Service
      BW              Bandwidth
      BWM             Block-Write Mode
      BWM             Broadcast Warning Message
      BWOD            Bandwidth On Demand
      BWQ             Buzz-Word Quotient
      BWS             Battered Woman Syndrome
      BYR             Year of Birth
      BYTE            Binary Element String
      C               C Source Code File
      C               Celsius
      C&T             Chips and Technologies
      C/D             Control Data
      C/P             Clindamycin/Primaquine
      CA              Cable
      CA              Cellular Automata
      CA              Change Accumulation
      CA              Channel Adapter
      CA              Computer-Aided
      CA              Computer Algebra
      CA              Cooperative Agreement
      CAAA            Clean Air Act Amendents
      CAB             Coronary Artery Bypass
      CABG            Coronary Artery Bypass Graft
      CABS            Carrier Access Billing System
      CAC             Calling-Card Authorization Center
      CAC             Carrier Access Code
      CAC             Circuit Administration Center
      CAC             Customer Administration Center
      CACM            Communications of the Association for Computing Machinery
      CACTUS          Capital Area Central Texas Unix Society
      CAD             Computer-Aided Design
      CAD             Computer-Aided Dispatch
      CAD             Coronary Artery Disease
      CAD             Corrective Action Design
      CADC            Computer-Aided Design Center
      CADD            Computer Aided Design and Drafting
      CADL            CADKey Advanced Design Language
      CADV            Combined Alternate Data/Voice
      CAE             Cerebral Air Embolism
      CAE             Common Applications Environment
      CAE             Computer-Aided Education
      CAE             Computer-Aided Engineering
      CAEDS           Computer-Aided Engineering Design System
      CAEPR           Centre for Aboriginal Economic Policy Research
      CAERS           Computer-Aided Emergency Response Team
      CAF             Call-Attachment-Facility
      CAF             Computers and Academic Freedom
      CAFE            Corporate Average Fuel Economy
      CAFM            Computer-Aided Facilities Management
      CAG             Column Address Generator
      CAH             Chronic Active Hepatitis
      CAI             Call Assembly Index
      CAI             Career Assessment Inventory
      CAI             Computer-Aided Industry
      CAI             Computer-Assisted Instruction
      CAIN            Computerized AIDS Information Network
      CAL             Computer-Assisted Learning
      CALC            Computer-Assisted Learning Center
      CALD            Chronic Active Liver Disease
      CALI            Computer-Aided Legal Instruction
      CALL            Canadian Academic Law Libraries
      CALMIT          Center for Advanced Land Management Information Technologies
      CALS            Computer-Aided Acquisition and Logistics
      CAM             Common Access Method
      CAM             Computer-Aided Management
      CAM             Computer-Aided Manufacturing
      CAM             Content Addressable Memory
      CAM             Control Administration Module
      CAMA            Centralized Automatic Message Accounting
      CAMAC           Computer Automated Measurement And Control
      CAMIS           Center for Advanced Medical Informatics at Stanford
      CAN             Campus Area Network
      CAN             CFIDS Activation Network
      CANDA           Computer-Assisted New Drug Applications
      CANSIM          Canadian Socio-Economic Time Series Database
      Cap             Capacity
      CAP             College of American Pathologists
      CAP             Communication Application Platform
      CAP             Complex Autonomous Payload
      CAP             Comprehensive AIDS Program
      CAP             Computer-Aided Publishing
      CAPD            Computing to Assist Persons With Disabilities
      CAPL            Capillary Pump Loop Experiment
      CAPP            California Academic Partnership Program
      CAPP            Computer-Aided Process Planning
      CAPS            Cassette Programming System
      CAPS            Center for AIDS Prevention Studies
      CAPTAI          Character and Pattern Telephone Access Information
      CAPTAIN         Character and Pattern Telephone Access Information Network
      CAQ             Certificate of Added Qualafications
      CAQ             Computer-Aided Quality Assurance
      CAR             Check Authorization Record
      CAR             Computer Access and Retrieval
      CAR             Computer-Aided Retrieval
      CAR             Control Advisory Release
      CAR             Coordinated Assessment and Referral
      CARE            Ryan White Comprehensive AIDS Resources Emergency Act
      CARL            Colorado Alliance of Research Libraries
      CAROT           Centralized Automatic Reporting of Trunks
      CART            Classification and Regression Trees
      CAS             California Academy of Sciences
      CAS             Circuit-Associated Signaling
      CAS             Column Address Strobe
      CAS             Communicating Application Specification
      CAS             Computer-Aided Styling
      CAS             Computerized Autodial System
      CAS             Customer Administrative Services
      CASCADE         Compact and Scalable Dedicated Ethernet
      CASE            Computer-Aided Software Engineering
      CASHE           College Aide Sources for Higher Education
      CASL            Crosstalk Application Scripting Language
      CASS            Computer-Assisted Search Service
      CASSIS          Classification and Search Support Information System
      CAT             Catalog File
      CAT             Common Authentication Technology
      CAT             Computed Axial Tomography
      CAT             Computer-Aided Test
      CAT             Computer-Aided Transcription
      CAT             Computer-Assisted Testing
      CAT             Computer-Assisted Typesetter
      CAT             Concatenate
      CATNIP          Common Architecture for Next Generation IP
      CATS            Computer-Assisted Training System
      CATV            Community Antenna System Television
      CAU             Controlled-Access Unit
      CAV             Constant Angular Velocity
      CAVU            Ceiling and Visability Unlimited
      CAW             Channel Address Word
      CAX             Community Automatic Exchange
      CBBS            Computerized Bulletin Board Service
      CBC             Canadian Broadcasting Corporation
      CBC             Complete Blood Count
      CBC             Cypher Block Chaining
      CBCP            Callback Control Protocol
      CBCT            Customer-Bank Communications Terminal
      CBE             Certified Banyan Engineer
      CBE             Computer-Based Education
      CBE             Consulting Business Essentials
      CBG             Color Business Graphics
      CBI             Compound Batch Identification
      CBI             Computer-Based Instruction
      CBI             Crossbar Interface
      CBJ             Core-Based Join Multicasting
      CBIPO           Custom-Built Installation Process Offering
      CBL             COBOL File
      CBL             Computer-Based Learning
      CBL             Cord Blood Lymphocytes
      CBM             Commodore Business Machines
      CBMS            Computer-Based Mail System
      CBMS            Computer-Based Message System
      CBO             Community-Based Organizations
      CBR             Case-Based Reasoning
      CBR             Computer-Based Reference
      CBS             Certified Banyan Specialist
      CBS             Chronic Brain Syndrome
      CBT             Cognitive-Behavioral Therapy
      CBT             Computer-Based Terminal
      CBT             Computer-Based Training
      CBT             Computerized Body Tomography
      CBT             Core-Based Tree Multicasting
      CBW             Chemical and Biological Warfare
      CBW             Convert Byte-to-Word
      CBX             Computer-Controlled Branch Exchange
      CBX             Computerized Branch Exchange
      CBX             Computerized Business Exchange
      CBX             Computerized Private Branch Exchange
      CC              Calling Card
      CC              Carbon Copy
      CC              Card Column
      CC              Carriage Control
      CC              Center Conductor
      CC              Central Computer
      CC              Central Control
      CC              Closed Circuit
      CC              Cluster Controller
      CC              Command Chain
      CC              Common Control
      CC              Condition Code
      CC              Connection Confirm
      CC              Cost Center
      CC              Credit Card
      CCA             Common Communications Adapter
      CCA             Common Cryptographic Architecture
      CCA             Computer Content Architecture
      CCAFS           Cape Canaveral Air Force Station
      CCAT            Center for Computer Analysis of Texts
      CCB             Channel Control Block
      CCC             Central Computing Committee
      CCC             Central Control Complex
      CCC             Change and Configuration Control
      CCC             Change Configuration Control
      CCC             Computer Control Center
      CCCA            Campus Computer Communication Association
      CCD             Central Computing Division
      CCD             Charge-Coupled Device
      CCD             Complementary Coded Decimal
      CCD             Computer-Controlled Display
      CCD             Customer Configuration Document
      CCDN            Corporate Consolidated Data Network
      CCEP            Commercial Communications Endorsement Program
      CCF             Central Computing Facility
      CCF             Communications Control Field
      CCF             Controller Communications Facility
      CCH             Channel-Check Handler
      CCHS            Cylinder-Cylinder-Head-Sector
      CCI             Computer Carrier Interrupt
      CCI             Corrected Count Increment
      CCIP            Continuously-Computed Impact Point
      CCIRN           Coordinating Committee for Intercontinental Research Networks
      CCIS            Common Channel Interoffice Signaling
      CCITT           Consultative Committee For International Telephone and Telegraph
      CCL             Common Carrier Line
      CCL             Communications Control Language
      CCL             Console Command Language
      CCLP            Common Carrier Line Pool
      CCM             Communications Control Mode
      CCM             Customer Control Management
      CCN             Center for Civic Networking
      CCNC            Common Channel Network Controller
      CCNC            Computer/Communications Network Center
      CCP             Call Control Part
      CCP             Certificate in Computer Programming
      CCP             Certified Computer Programmer
      CCP             Character Controlled Protocol
      CCP             Character Count Protocol
      CCP             Compression Control Protocol
      CCP             Console Command Processor
      CCPT            Controller Creation Parameter Table
      CCR             Central Control Room
      CCR             Clock Configuration Register
      CCRIS           Chemical Carcinogenesis Research Information System
      CCRP            Continuously-Computed Release Point
      CCRx            Convergent Combination Therapy
      CCS             Calling-Card Service
      CCS             Common Channel Signaling
      CCS             Common Command Set
      CCS             Common Communications Support
      CCS             Community Case Services
      CCS             Component Cooling System
      CCS             Continuous Commercial Service
      CCS             Conversational Compiling System
      CCS             Hundred Call Seconds
      CCSA            Common Central Switching Arrangement
      CCSG            Children's Cancer Study Group
      CCSO            Computing and Communications Services Office
      CCSS            Commodity Command Standard System
      CCSS            Common Channel Signalling System
      CCT             Central Control Terminal
      CCT             Cumulative Cycle Time
      CCT             Custom Computer Technology
      CCTA            Central Computer and Telecommunications Agency
      CCTAC           Computer Communications Trouble Analysis Center
      CCTG            California Collaborative Treatment Group
      CCTS            Current Cites
      CCTV            Closed-Circuit Television
      CCU             Central Control Unit
      CCU             Communications Control Unit
      CCU             Coronary Care Unit
      CCW             Cancer Control Window
      CCW             Channel Command Word
      CCW             Counter-Clockwise
      CD              Card
      CD              Cluster of Differentiation
      CD              Collision Detection
      CD              Color Display
      CD              Compact Disc
      CD-DA           Compact Disc-Digital Audio
      CD-I            Compact Disc-Interactive
      CD-MO           Compact Disc-Magneto-Optical
      CD-R            Compact Disc-Recordable
      CD-RDx          Compact Disc-Read-Only Memory Data-Exchange Standard
      CD-ROM          Compact Disc-Read-Only Memory
      CD-RTOS         Compact Disc-Real-Time Operating System
      CD-V            Compact Disc-Video
      CD-WO           Compact Disc-Write-Once
      CD-XA           Compact Disc-Extended Architecture
      CDA             Call Data Accumulator
      CDA             Children of Deaf Adults
      CDA             Coin Detection and Announcement
      CDA             Compound Document Architecture
      CDC             Calculated Date of Confinement
      CDC             Center For Disease Control
      CDC             Code Directing Character
      CDC             Consensus Development Conference Reports
      CDC             Control Data Corporation
      CDCCP           Control Data Communications Control Procedure
      CDCE            Central Data Conversion Equipment
      CDD             Common Data Dictionary
      CDDI            Copper Distributed Data Interface
      CDE             CADkey Dynamic Extension
      CDE             Certified Data Educator
      CDE             Common Desktop Environment
      CDE             Complex Data Entry
      CDE             Cooperative Development Environment
      CDER            Center for Drug Evaluation and Research
      CDF             Comma-Delimited Format
      CDF             Communications Data Field
      CDF             Context-Dependent File
      CDFI            Color Duplex Flow Imaging
      CDH             Command and Data Handling
      CDH             Congenital Dislocation of the Hip
      CDI             Circle Digit Identification
      CDI             Collector Diffused Isolation
      CDI             Comprehensive Dissertation Index
      CDI             Connected Line Identification
      CDL             Computer Description Language
      CDL             Computer-Design Language
      CDM             Content Data Model
      CDMA            Code Division Multiple Access
      CDN             Consortium Data Network
      cDNA            Complementary DNA
      CDO             Community Dial Office
      CDOS            Concurrent Disk Operating System
      CDP             Career Development Program
      CDP             Certificate in Data Processing
      CDP             Certified Data Processor
      CDP             Communication Data Processor
      CDP             Continuous Distending Pressure
      CDPD            Cellular Digital Packet Data
      CDR             Call Detail Recording
      CDR             Call Dial Rerouting
      CDR             Card Reader
      CDR             Compact Disk Reader
      CDR             Commander
      CDR             Complementarity-Determining Region
      CDR             Conceptual Design Report
      CDR             Continuing Disability Review
      CDR             Critical Design Review
      CDRL            Contract Data Requirements List
      CDRM            Cross-Domain Resource Manager
      CDS             Centralized Data System
      CDS             Central Directory Server
      CDS             Circuit Design System
      CDS             Compliance Data System
      CDS             Craft Dispatch System
      CDS             Current Directory Structure
      CDSC            Communicable Disease Surveillance Centre
      CDT             Call Data Transmitter
      CDT             Control Data Terminal
      CDTS            Centralized Digital Telecommunications System
      CDU             Central Display Unit
      CDU             Chemical Dependency Unit
      CDU             Control Display Unit
      CDX             Compound Index File
      CE              Cache Enable
      CE              Categorical Exclusion
      CE              Channel End
      CE              Chemical Engineer
      CE              Chief Engineer
      CE              Collision Elimination
      CE              Computer Engineer
      CE              Continuing Education
      CE              Customer Engineer
      CEA             Carcinoembryonic Antigen
      CEAM            Center for Exposure Assessment Modeling
      CEB             Communications Engineering Branch
      CEBAFI          Continuous Electron Beam Acceleration Facility
      CEBV            Chronic Epstein-Barr Virus
      CECM            Centre for Experimental and Constructive Mathematics
      CECP            County Extended Code Page
      CEDAR           Coupling Energetics and Dynamics of Atmospheric Regions
      CEES            Center for Environmental and Estuarine Studies
      CEFMS           Corps of Engineers Financial Management System
      CEG             Continuous Edge Graphics
      CEGL            Cause-Effect Graph Language
      CEI             Comparably Efficient Interconnector
      CEI             Compliance Evaluation Inspection
      CEI             Computer-Extended Instruction
      CEI             Conducted Electromagnetic Interference
      CEMS            Cooperative Extension Management System
      CENET           Cornell Extension Network
      CEO             Chief Executive Officer
      CEO             Comprehensive Electronic Office
      CEO             Computer Enhancement Option
      CEP             Circular Error Probability
      CEP             Cognitive Evoked Potential
      CEP             Corporate Electronic Publishing
      CEP             Countercurrent Electrophoresis
      CEPA            Civil Engineering Programming Applications
      CEPIS           Council of European Professional Informatics Societies
      CER             Conditioned Emotional Response
      CERF            Cooperative Extension Reference File
      CERFNET         California Education and Research Federation Network
      CERI            Center for Environmental Research Information
      CERRO           Central European Regional Research Organization
      CERT            Computer Emergency Response Team
      CES-D           Center for Epidemiologic Studies Depression Scale
      CESD            Composit External Symbol Dictionary
      CESNET          Czech Educational and Scientific Network
      CET             Council for Educational Technology
      CETA            Crew and Equipment Translation Aid
      CETH            Center for Electronic Texts in the Humanities
      CETI            Continuously Executing Transfer Interface
      CETS            Computer and Educational Technology Services
      CEV             Controlled-Environment Vault
      CF              Carry Flag
      CF              Carry-Forward
      CF              Central File
      CF              Certainty Factor
      CF              Coin First
      CF              Conversion Factor
      CF              Correctional Facility
      CF              Count Forward
      CFA             Comprehensive Functional Assessment
      CFA             Crossed-Field Amplifier
      CFB             Cipher Block Chain
      CFB             Cipher Feedback
      CFB             Cypher Feedback
      CFC             Continuous Flow Centrifugation
      CFCA            Communications Fraud Control Association
      CFD             Computational Fluid Dynamics
      CFES            Continuous Flow Electrophoresis System
      CFG             Configuration
      CFG             Configuration File
      CFHT            Canada-France-Hawaii Telescope
      CFI             CSF-Derived Isolate
      CFIA            Component Failure Impact Analysis
      CFIDS           Chronic Fatigue Immune Deficiency Syndrome
      CFM             Code Fragment Manager
      CFM             Cubic Feet-Per-Minute
      CFNR            Call-Forwarding No-Reply
      CFO             Chief Financial Officer
      CFP             Call For Papers
      CFP             Computers Freedom and Privacy
      CFP             Creation Facilities Program
      CFR             Catastrophic Failure Rate
      CFR             Code of Federal Regulations
      CFS             Chronic Fatigue Syndrome
      CFS             Continuous Forms Stacker
      CFTC            Commodity Futures Trading Commission
      CFU             Call-Forwarding Unconditional
      CFU             Colony Forming Units
      CFU             Create Function Unit
      CFX             Circumflex
      CG              Center of Gravity
      CG              Computer Graphics
      CGA             Color Graphics Adapter
      CGB             Circuit Group Blocking
      CGBA            Commercial Generic Bioprocessing Apparatus
      CGC             Caenorhabditis elegans Genetics Center
      CGI             Color Graphics Processing
      CGI             Computer Graphics Interface
      CGI             Computer-Generated Images
      CGI             Current Group Indicator
      CGIC            Canadian Geoscience Information Center
      CGL             Chronic Granulocytic Leukemia
      CGM             Computer Graphics Metafile
      CGMT            Census of Graduate Medical Trainees
      CGP             Circulatory Gene Pool
      CGQ             Quebec Geoscience Center
      CGRO            Compton Gamma Ray Observatory
      CGS             Centimeter-Gram-Second System
      CGU             Character Generation Utility
      CGVHD           Chronic Graft-Versus-Host Disease
      CHAMP           Comet Halley Active Monitoring Program
      CHAR            Character
      CHARA           Center for High Angular Resolution Astronomy
      CHAT            Conversational Hypertext Access Technology
      CHD             Congenital Heart Disease
      CHD             Coronary Heart Disease
      CHDL            Computer Hardware Description Language
      CHESS           Comprehensive Health Enrichment Support System
      CHF             Congestive Heart Failure
      CHGS            Center for Human Genome Studies
      CHI             Consumer Health Informatics
      CHID            Combined Health Information Database
      CHIEF           Clearinghouse for Inventories/Emission Factors
      CHIM            Center for Healthcare Information Management
      CHINS           Child in Need of Services
      CHIP            Chemical Hazard Information Profile
      CHIP            Chile Information Project
      CHIP            Community Health Information Program
      CHIPS           Clearing House Interbank Payments System
      CHIS            Community Health Information System
      CHK             Check
      CHK             Chkdsk File
      CHKDSK          Check Disk
      CHMOD           Change Mode
      CHMOS           Complementary High Performance Metal Oxide
      CHO             Carbohydrate
      CHOW            Community Health Outreach Worker
      CHP             Chapter
      CHP             Channel Pointer
      CHPID           Channel Path Identifier
      CHR             Character
      CHROMEX         Chromosomes and Plant Cell Division in Space Experiment
      CHS             Class Hour Schedule
      CI              Call Indicator
      CI              Circuit Interruptor
      CI              Combination Index
      CI              Computer Interconnect
      CI              Control Interval
      CIA             Central Intelligence Agency
      CIA             Computer Interface Adaptor
      CIAC            Computer Incident Advisory Capability
      CIAR            Canadian Institute for Advanced Research
      CIC             Carrier Identification Codes
      CIC             Circuit Identification Code
      CIC             Committee for Institutional Cooperation
      CIC             Coordination and Information Center
      CIC             Customer Information Center
      CICP            Consortium for International Crop Protection
      CICP            Customer Interrupt Control Program
      CICS            Customer Information Control System
      CICU            Coronary Intensive Care Unit
      CID             Caller ID
      CID             Charge-Injection Device
      CID             Communications Identifier
      CID             Computer-Integrated Design
      CID             Connection Identification
      CIDA            Channel Indirect Data Addressing
      CIDF            Control Information Definition Field
      CIE             Chief Information Engineer
      CIE             Counterimmunoelectrophoresis
      CIF             Central Index File
      CIF             Central Integration Facility
      CIF             Clone-Inhibiting Factor
      CIF             Common Intermediate Format
      CIG             Computer Image Generation
      CII             Call Identity Index
      CIJE            Current Index to Journals in Education
      CIL             Condition Incident Log
      CILT            Center for Independent Living
      CIM             CompuServe Information Manager
      CIM             Computer Input from Microfilm
      CIM             Computer-Integrated Manufacturing
      CIM             Critical Index Management
      CIMT            Computer Integrated Manufacturing and Technology
      CIO             Centers/Institutes/Offices
      CIO             Chief Information Officer
      CIOCS           Communication Input/Output Control System
      CIOS            Communication Institute for Online Scholarship
      CIP             Cellular Immunocompetence Profile
      CIP             Cognitive Information Processing
      CIR             Circuit
      CIR             Committed Information Rate
      CIR             Computer Intergrated Research
      CIRCA           Center for Instructional and Research Computing Activities
      CIRRIS          Cryogenic Infrared Radiance Instrument for Shuttle
      CIS             Carcinoma-In-Situ
      CIS             Clinical Information System
      CIS             Commercial Instruction Set
      CIS             CompuServe Information Service
      CIS             Computer Information Service
      CIS             Computer Information Systems
      CIS             Customized Intercept Service
      CISAB           Center for the Integrative Study of Animal Behavior
      CISC            Complex Instruction Set Computer
      CISE            Computer and Information Science and Engineering
      CIT             California Institute of Technology
      CIT             Call-In-Time
      CIT             Circumstellar Imaging Telescope
      CIT             Communications and Information Technology
      CIT             Computer Integrated Telephony
      CIT             Computer Interactive Text
      CIT             Computer-Integrated Telephony
      CITI            Centre for Information Technologies Innovation
      CITS            Central-Integrated Test System
      CIU             Cable Interface Unit
      CIU             Computer Interface Unit
      CIX             Commercial Internet Exchange
      CIX             Compulink Information Exchange
      CJE             Critical Job Element
      CJO             Current Job Openings
      CK              Check
      CKD             Count Key Data
      CKD             Count Key Device
      CKDS            Cryptographic Key Translation Center
      CL              Command Language
      CL              Confidence Level
      Cl              Confidence Limits
      CL              Control Language
      CL              Conversion Loss
      CLA             Certified Laboratory Assistant
      CLA             Communication Line Adapters
      CLAMS           Clinical Linguistic and Auditory Milestone Scale
      CLAR            Channel Local Address Register
      CLASP           Comprehensive Logistics Automated Support Program
      CLASS           Classification Literature Automated Search Service
      CLASS           Consular Lookout and Support System
      CLASS           Custom Local Area Signaling Service
      CLAT            Communication Line Adapters for Teletypewriters
      CLC             Clear Carry Flag
      CLC             Computing Learning Center
      CLCSE           Center for Life-Cycle Software Engineering
      CLD             Clear Direction Flag
      CLEI            Centro Latinoamericano de Estudios en Informatica
      CLEI            Common-Language Equipment Identification
      CLEP            College-Level Examination Program
      CLI             Call-Level Interface
      CLI             Clear Interrupt Flag
      CLI             Command Line Interpreter
      CLI             Command-Line Interface
      CLID            Calling Line Identification
      CLIO            CU LawNet Info System
      CLIP            Compiler Language For Information Processing
      CLIST           Command List
      CLK             Clock
      CLL             Chronic Lmphyocytic Leukemia
      CLLI            Common-Language Location Identification
      CLM             Career-Limiting Move
      CLNP            Connectionless Network Protocol
      CLOS            Common Lisp Object System
      CLOUDS          Cloud Logic to Optimize Use of Defense Systems
      CLP             Clipboard
      CLP             Clipboard File
      CLP             Current Line Pointer
      CLPA            Create Link Pack Area
      CLR             Combined Line and Recording
      CLR             Computer Language Recorded
      CLS             Clear Screen
      CLS             Computer Letter Service
      CLS             Computerized Litigation Support
      CLSR            Computer Law Service Reporter
      CLT             Computer Language Translated
      CLT             Computer Line Terminal
      CLTS            Clear Task Switch Flag
      CLU             Central Logic Unit
      CLUT            Color Look-Up Table
      CLV             Constant Linear Velocity
      CM              Command Module
      CM              Communication
      CM              Communication Multiplexer
      CM              Computer Module
      CM              Configuration Management
      CM              Control Mark
      CM              Core Memory
      CM              Corrective Maintenance
      CMA             Certified Medical Assistant
      CMAC            Centralized Maintenance and Administration Center
      CMBLS           Checklist of Microcomputer-Based Library Software
      CMC             Cellular Mobile Carrier
      CMC             Chronic Mucocutaneous Candidiasis
      CMC             Communication Machinery Corporation
      CMC             Communication Management Configuration
      CMC             Complement Carry Flag
      CMC             Computer-Mediated Communication
      CMC             Construction Maintenance Center
      CMC             Corporate Management Commitee
      CMCC            Central Mission Control Center
      CMD             Command
      CMD             Command File
      CMDS            Centralized Message Data System
      CME             Center for Media Education
      CMF             Cross-Modulation Factor
      CMH             Centre for Metropolitan History
      CMHC            Community Mental Health Center
      CMI             Cell-Mediated Immunity
      CMI             Computer-Managed Instruction
      CMIA            China Medical Informatics Association
      CMIO            Chief Medical Information Officer
      CMIP            Common Management Information Protocol
      CMIS            Common Management Information Services
      CMISE           Common Management Information Service Element
      CML             Chronic Myelogenous Leukemia
      CML             Computer-Managed Learning
      CML             Current Mode Logic
      CMMRR           Command Mode Rejection Ratio
      CMMS            Computerized Maintenance Management System
      CMOS            Complementary Metal-Oxide Semiconductor
      CMP             Compare
      CMP             Compare Two Operands
      CMP             Computational
      CMP             Cooperative Marketing Program
      CMP             Critical Materials Program
      CMPLX           Complex
      CMPS            Compare Strings
      CMPSB           Compare String Byte
      CMPSD           Compare String Doubleword
      CMPSW           Compare String Word
      CMPT            Cervical Mucous Penetration Test
      CMPTR           Computer
      CMR             Chemistry and Materials Research
      CMR             Common Mode Rejection
      CMR             Communcations Moon Relay
      CMS             Call Management System
      CMS             Chronic Mountain Sickness
      CMS             Circuit Maintenance System
      CMS             Communications Management Series
      CMS             Compiler Monitor System
      CMS             Conversational Monitoring System
      CMSG            Common Management Study Group
      CMT             Cellular Mobile Telephone
      CMTR            Certified Material Test Report
      CMU             Carnegie-Mellon University
      CMU             Control and Monitoring Unit
      CMV             Common Mode Voltage
      CMW             Compartmented Mode Workstation
      CMY             Cyan-Magenta-Yellow
      CMYB            Cyan-Magenta-Yellow-Black
      CN              Connection
      CN/A            Customer Name and Address
      CNA             Communications Network Application
      CNC             Computer Numerical Control
      CNC             Computerized Numeric Control
      CNCC            Customer Network Control Center
      CNE             Certified Netware Engineer
      CNE             Certified Network Engineer
      CNEPA           Certified NetWare Engineers Professional Association
      CNES            Centre National d'Etude Spatiales
      CNF             Configuration File
      CNI             Certified Netware Instructor
      CNI             Coalition for Networked Information
      CNI             Common Network Interface
      CNIS            Computerized Nursing Information Systems
      CNL             Circuit Net Loss
      CNLS            Center for Nonlinear Studies
      CNM             Communications Network Management
      CNO             Carbon-Nitrogen-Oxygen
      CNR             Carrier-to-Noise Ratio
      CNRI            Corporation for National Research Initiatives
      CNS             Central Nervous System
      CNS             Clinical Nurse Specialist
      CNS             Communications Network Services
      CNS             Complimentary Network Service
      CNSF            Cornell National Supercomputer Facility
      CNSR            Comet Nucleus Sample Return
      CNT             Count
      CNTRL           Control
      CO              Central Office
      CO              Cutoff
      CO/NO           Current Operator/Next Operator
      COACH           Canadian Organization for the Advancement of Computers in Health
      COAD            Chronic Obstructive Airway Disease
      COAG            Closed Angle Glaucoma
      COAM            Customer-Owned-and-Maintained
      COAP            Certified Office Automation Professional
      COARE           Coupled Ocean-Atmosphere Response Experiment
      COAX            Coaxial Cable
      COB             Close-of-Business
      COB             Complementary Offset Binary
      COBE            Cosmic Background Explorer
      COBIS           Computer Based Instruction System
      COBIT           Central Office Based Intelligent Transport
      COBOL           Common Business-Oriented Language
      COC             Circuit Order Control
      COC             Coded Optical Character
      COC             Corporate Operations Committee
      COCOT           Customer-Owned Coin-Operated Telephone
      COD             Cash-on-Delivery
      COD             Cash-on-Demand
      COD             Cause-of-Death
      COD             Code List File
      COD             Collect-on-Delivery
      CODASYL         Conference on Data System Languages
      CODCF           Central Office Data Connecting Facility
      CODE            Client/Server Open Development Environment
      CODEC           Coder-Decoder
      CODEC           Compression/Decompression
      CODI            Cornucopea of Disability Information
      CODIL           Context-Dependent Information Language
      COE             Center of Excellence
      COE             Central Office Equipment
      COED            Computer Operated Electronics Display
      COEM            Commercial Original Equipment Manufacturer
      COEP            Customer Originated Electronic Payment
      COER            Central Office Equipment Report
      COFF            Common Object File Format
      COGME           Council on Graduate Medical Education
      COGS            Computer-Oriented Geologic Society
      COI             Certificate of Inspection
      COI             Conflict of Interest
      COIL            Central Ohio Internet Link
      COIN            Columbia Online Information Network
      COIN            Complete Operating Information
      COL             Collision
      COL             Computer-Oriented Language
      COLD            Chronic Obstructive Lung Disease
      COLT            Central Office Line Tester
      COLT            Communications Line Terminator
      COLT            Computer-Linked Text
      COLT            Computerized On-Line Testing
      COM             Command File
      COM             Commercial Designation in Domain Name System
      COM             Common Object Model
      COM             Communications
      COM             Computer Output on Microfilm
      COMAL           Common Algorithmic Language
      COMAS           Central Office Maintenance and Administration
      COMDEX          Computer Dealers Exposition
      COML            Commercial Language
      COMM            Communications
      COMSAT          Communications Satellite
      COMSEC          Communications Security
      COMSTAR         Common System for Technical Analysis
      CON             Central Office News
      CON             Console
      CON             Control
      CONFIG          Configuration
      CONS            Carrier-Operated Noise Suppression
      CONS            Connection-Oriented Networking Session
      CONS            Console
      CONST           Constant
      CONT            Continue
      CONT            Continuous
      CONTAC          Central Office Network Access
      COO             Change Over Order
      CoOL            Conservation OnLine
      COP             Call-Offering Procedure
      COP             Certification of Process
      COP             Character-Oriented Protocol
      COP             Coefficient of Performance
      COP             Colloid Osmotic Pressure
      COP             Computer Optimization Package
      COPA            Council on Post-Secondary Accreditation
      COPC            Community-Oriented Primary Care
      COPD            Chronic Obstructive Pulmonary Disease
      COPE            Communications-Oriented Processing Equipment
      COPE            Cyberchronicle of Political Economy
      COPICS          Communications-Oriented Production and Inventory
      COPIS           Corporate Planning Information System
      COPS            Computer Oracle and Password System
      COR             Conditioned Orientation Response
      COR             Correct
      CORA            Cost of Remedial Action
      CORAL           Computer On-Line Real-Time Applications Language
      CORBA           Common Object Request Broker Architecture
      CORE            Commercial Research and Education
      CORE            Council on Rehabilitation Education
      CORN            Computer-Resource Nucleus
      CORNET          Corporate Network
      CORR            Correspondence
      COS             Call Originate Status
      COS             Central Office Switch
      COS             Class of Service
      COS             Compatible Operating System
      COS             Conservative Opportunity Society
      COS             Cray Operating System
      COSE            Common Open Software Environment
      COSLINE         COSMIC Online Information Services
      COSMIC          Computer Software Management and Information Center
      COST            Cooperation in Scientific and Technical Research
      COSTAR          Corrective Optics Space Telescope Axial Replacement
      COT             Central Office Terminal
      COV             Concept Oriented View
      CP              Call Processor
      CP              Card Punch
      CP              Central Processor
      CP              Clock Phase
      CP              Color Printer
      CP              Command Post
      CP              Command Processor
      CP              Computer
      CP              Control Panel
      CP              Control Point
      CP              Control Program
      CP              Copy-Protected
      CP/M            Control Program for Microcomputers
      CPA             Communications and Public Affairs
      CPA             Competitive Probe Assay
      CPA             Critical Path Analysis
      CPAE            Center for Professional and Applied Ethics
      CPAF            Cost-Plus-Award-Fee
      CPC             Card Programmed Calculator
      CPC             Cellular Phone Company
      CPC             Ceramic-Wafer Printed Circuit
      CPC             Cerebral Performance Category
      CPC             Circuit Provisioning Center
      CPC             Compact Personal Computer
      CPC             Computer Power Center
      CPC             Computer Process Control
      CPC             Computer Program Component
      CPCG            Commercial Protein Crystal Growth
      CPCR            Cardiopulmonary-Cerebral Resuscitation
      CPCRA           Community Programs for Clinical Research of AIDS
      CPD             Cards-Per-Day
      CPD             Cephalopelvic Disproportion
      CPD             Consolidated Programming Document
      CPDC            Common Packet Data Channels
      CPDD            Command Post Digital Display
      CPDS            Computer Program Design Specification
      CPE             Central Processing Element
      CPE             Central Processing Equipment
      CPE             Central Program Exchange
      CPE             Central Programmer and Evaluator
      CPE             Computer Performance Evaluation
      CPE             Customer Premises Equipment
      CPE             Customer Provided Equipment
      CPE             Cytopathic Effect
      CPET            Catalogue of Projects in Electronic Text
      CPF             Computer Program Facility
      CPF             Control Program Facility
      CPFF            Cost-Plus-Fixed-Fee
      CPH             Characters-Per-Hour
      CPH             Cost-Per-Hour
      CPI             California Psychological Inventory
      CPI             Characters-Per-Inch
      CPI             Clock-Per-Instruction
      CPI             Code Page Information
      CPI             Common Programming Interface
      CPI             Consumer Price Index
      CPI-C           Common Programming Interface for Communications
      CPIP            Control Protocol / Internet Protocol
      CPK             Creatine Phosphokinase
      CPL             Combined Programming Language
      CPL             Command Procedure Language
      CPL             Computer Program Library
      CPL             Conversational Programming Language
      CPL             Cooperative Processing Language
      CPL             Current Privilege Level
      CPLD            Coupled
      CPLMT           Complement
      CPM             Cards-Per-Minute
      CPM             Control Program Monitor
      CPM             Copies-Per-Minute
      CPM             Cost-Per-Minute
      cpm             Counts-Per-Minute
      CPM             Critical Path Method
      CPNI            Customer Proprietary Network Information
      CPNN            Cal Poly News Network
      CPO             Chief Post Office
      CPO             Code Practice Oscillator
      CPO             Concurrent Peripheral Operations
      CPO             Corporate Product Operations
      CPODA           Contention Priority-Oriented Demand Assignment
      CPOL            Communications Procedure-Oriented Language
      CPP             C++ Source File
      CPP             Card Punching Printer
      CPP             Cerebral Perfusion Pressure
      CPP             Command Processing Program
      CPP             Corporate Planning Process
      CPR             Cardiopulmonary Resuscitation
      CPR             Center for Public Resources
      CPR             Computerized Patient Record
      CPR             Critical Problem Report
      CPRI            Computer-Based Patient Record Institute
      CPROST          Centre for Policy Research on Science and Technology
      CPS             Cataloging Provisioning System
      CPS             Center for Pacific Studies
      CPS             Central Processing System
      CPS             Characters-Per-Second
      CPS             Child Protective Services
      CPS             Clustered Printer Sharer
      CPS             Communications Processor System
      CPS             Computer Power System
      CPS             Conversational Programming System
      CPS             Current Population Survey
      CPS             Cycles-Per-Second
      CPSC            Consumer Product Safety Commission
      CPSR            Computer Professionals for Social Responsibility
      CPSS            Common Programming Support System
      CPT             Critical Path Technique
      CPTA            Computer Programming and Testing Activity
      CPU             Central Processing Unit
      CPX             Capacity Planning Extended
      CPY             Copy
      CQ              Charge of Quarters
      CQI             Continuous Quality Improvement
      CR              Call Request
      CR              Card Reader
      CR              Carriage Return
      CR              Command Register
      CR              Complete Regression
      CR              Complete Remission
      CR              Conditioned Reinforcer
      CR              Control Relay
      CR              Control Response
      CR              Control Reverse
      CR              Count Reverse
      CR              Credit
      CRA             Computing Reference Area
      CRA             Cooperative Research Act
      CRADA           Cooperative Research and Development Agreements
      CRAF            Comet Rendezvous Asteroid Flyby
      CRAM            Card Random Access Memory
      CRC             Carriage Return Contact
      CRC             Colorectal Cancer
      CRC             Customer Record Center
      CRC             Customer Return Center
      CRC             Cyclic Redundancy Check
      CRD             Cardfile File
      CREAM           Cosmic Radiation Effects and Activation Monitor
      CRED            Credit Card Calling
      CREF            Connection Refused
      CREN            Computer Research and Education Network
      CREN            Corporation for Research and Educational Networking
      CRF             Chronic Renal Failure
      CRF             Control Relay Forward
      CRF             Corticotropin Releasing Factor
      CRF             Cross-Reference File
      CRFTR           Carrier Frequency Telephone Repeater
      CRG             Central Resource Group
      CRIM            Centre de Recherche Informatique de Montreal
      CRIS            Customer Record Information System
      CRISP           Complex-Reduced Instruction Set Processor
      CRISTA          Cryogenic Infrared Spectrometer Telescope for Atmosphere
      CRJE            Conversational Remote Job Entry
      CRL             Certificate Revocation List
      CRM             Central Recovery Module
      CRM             Cross Reacting Material
      CRMR            Continuous-Reading Meter Relay
      CRNA            Certified Registered Nurse Anesthetist
      CRO             Cathode-Ray Oscillograph
      CrO2            Cromium Dioxide
      CROM            Control Read-Only Memory
      CRP             Capacity Requirements Planning
      CRPC            Center for Research on Parallel Computation
      CRQ             Call-Request
      CRRES           Combined Release and Radiation Effects Satellite
      CRT             Cathode Ray Tube
      CRT             Center for Rehabilitation Technology
      CRTC            Canadian Radio-Television and Telecommunications Commission
      CRTNet          Communication Research and Theory Network
      CRTU            Combined Receiving and Transmitting Unit
      CRW             Crew
      CRYPTO          Cryptograh
      CRYPTO          Cryptography
      CS              Cable Switching
      CS              Channel Status
      CS              Check Sorter
      CS              Chip Select
      CS              Computer Science
      CS              Control Set
      CS              Control Signal
      CS              County Seat
      CS              Customer Service
      CS              Cycles Shift
      CSA             Carrier Serving Area
      CSA             Client Service Agent
      CSA             Common Service Area
      CSA             Computer Security Act
      CSA             Computer Systems Advisers
      CSA             Computer Systems Analyst
      CSA             Council on Scientific Affairs
      CSA             Customer Service Administration
      CSAB            Computer Science Advisory Board
      CSACC           Customer Service Administration Control Center
      CSB             Complementary Straight Binary
      CSB             Computer Science Branch
      CSC             Coppin State College
      CSC             Customer Support Center
      CSCF            Central Site Control Facility
      CSCW            Computer Supported Cooperative Work
      CSD             Constant-Speed Drive
      CSDC            Circuit-Switched Digital Capability
      CSDN            Circuit-Switched Data Network
      CSDS            Circuit-Switched Digital Services
      CSE             Committee on Special Education
      CSE             Common Standards for Quantitative Electrocardiography
      CSE             Computer Science and Engineering
      CSE             Control Systems Engineering
      CSF             Cerebrospinal Fluid
      CSF             Colony Stimulating Factor
      CSF             Critical Success Factor
      CSFT            Critical Success Factor Team
      CSG             Constructive Solid Geometry
      CSG             Consulting Services Group
      CSG             Corporate Systems Group
      CSI             Commercial Systems Integration
      CSI             Computerized Severity Index
      CSIDD           CALS SGML Integrated Data Dictionary
      CSL             Computer-Sensitive Language
      CSM             Cable System Manager
      CSM             Command and Service Module
      CSM             Computer Systems Manufacturing
      CSM             Continuous-Sheet Memory
      CSMA            Carrier Sense Multiple Access
      CSMA/CD         Carrier-Sense Multiple Access with Collision Detection
      CSMIP           California Strong Motion Instrumentation Program
      CSMP            Continuous-System Modeling Program
      CSN             Computer Systems News
      CSNET           Computer Science Network
      CSO             Central Services Organization
      CSO             Chained Sequential Operation
      CSO             Computing Services Office
      CSP             Certified Systems Professional
      CSP             Chemistry Screening Profile
      CSP             Coin Sent Paid
      CSP             Commercial Subroutine Package
      CSP             Community Support Program
      CSP             Control Switching Point
      CSP             Cross-System Product
      CSPAN           Cable Satellite Public Affairs Network
      CSR             Control and Status Register
      CSR             Corrected Sedimentation Rate
      CSR             Customer Service Records
      CSRG            Computer Systems Research Group
      CSRI            Computer Systems Research Institute
      CSS             Computer Special Systems
      CSSB            Compatible Single Sideband
      CSSE            Computer Services System Engine
      CSSG            Customer Service Solutions Group
      CSSI            Computer Software Services Industry
      CSSL            Continuous System Simulation Language
      CSSP            Computer Systems Policy Project
      CST             Campus Software Tools
      CST             Central Standard Time
      CST             Channel Status Table
      CST             Convulsive Shock Therapy
      CST             Current Segment Table
      CSTA            Computer-Supported Telephony Applications
      CSTC            Consolidated Satellite Test Center
      CSTO            Computing Systems Technology Office
      CSTU            Currently Signed-On Terminal User
      CSU             California State University
      CSU             Channel Service Unit
      CSW             Certified Social Worker
      CSW             Channel Status Word
      CSW             Commercial Sex Worker
      CT              Call Transfer
      CT              Channel Terminator
      CT              Communications and Tracking
      CT              Computer Tomography
      CT              Count
      CT              Counter
      CT              Current Transformer
      CTA             Channel and Traffic Control Agency
      CTAN            Comprehensive TeX Archive Network
      CTC             Central Test Center
      CTC             Centralized Traffic Control
      CTC             Channel-To-Channel
      CTC             Control Technology Center
      CTC             Counter Timer Circuit
      CTCA            Channel-To-Channel Adapter
      CTD             Center for Talent Development
      CTD             Computing and Telecommunications Division
      CTIO            Cerro Tololo Interamerican Observatory
      CTL             Cytotoxic T Lymphocyte
      CTMS            Carrier Transmission Measuring System
      CTO             Call Transfer Outside
      CTOS            Computerized Tomography Operating System
      CTP             California Technology Project
      CTPA            Coax-to-Twisted-Pair Adapter
      CTR             Cancer Tumor Registry
      CTR             Conformance Test Report
      CTR             Controlled Thermonuclear Reactor
      CTRL            Control
      CTRPN           Counselling
      CTS             Cellular Telephone Service
      CTS             Clear-to-Send
      CTS             Configuration Technical Specialists
      CTS             Counselling and Testing Site
      CTSS            Compatible Time-Sharing System
      CTT             Cartridge Tape Transport
      CTT             Computerized Transaxial Tomography
      CTY             Center for Talented Youth
      CU              Control Unit
      CUA             Common User Access
      CUAI            Common User Access Interface
      CUB             Cursor Backward
      CUC             Chronic Ulcerative Colitis
      CUCB            Control-Unit Control Blocks
      CuD             Computer Underground Digest
      CUD             Cursor Down
      CUD             Call User Data
      CUEBC           Computer Using Educators of BC
      CUF             Cursor Forward
      CUFON           Computer UFO Network
      CUG             Closed User Group
      CUIS            Columbus Users Information System
      CUISP           Columbus Users Information System Prototype
      CUL             See You Later
      CULDAT          Canadian Union List of Machine Readable Data Files
      CUNY            City University of New York
      CUP             Carcinoma of Unknown Primary
      CUP             Cursor Position
      CUR             Cursor File
      CUSP            Common User Program
      CUSP            Commonly Used System Program
      CUSS            Computer Users in the Social Sciences
      CUT             Control Unit Terminal
      CUTS            Cassette User Tape System
      CUU             Cursor Up
      CV              Coefficients of Variation
      CV              Constant Value
      CV              Constant Voltage
      CVA             Cerebrovascular Accident
      CVF             Compressed Volume File
      CVGA            Color Video Gaphics Array
      CVIA            Computer Virus Industry Association
      CVS             Cardiovascular System
      CVT             Communications Vector Table
      CVT             Constant Voltage Transformer
      CVT             Continuous Variable Transmission
      CVTE            Crystals by Vapor Transport Experiment
      CVW             CodeView for Windows
      CW              Call Waiting
      CW              Continuous Wave
      CW              Control Word
      CWD             Convert Word to Doubleword
      CWDE            Convert Word to Extended Double
      CWIS            Campus Wide Information System
      CWP             Communicating Word Processors
      CWRU            Case Western Reserve University
      CX              Character Transmission
      CXI             Common X-Windows Interface
      CXR             Chest X-Ray
      CY              Calendar Year
      CYF             Children Youth Family
      CYL             Cylinder
      CZ              Control Zone
      D               Decimal
      D               Density
      D               Digit
      D               Digital
      D               Display
      D               Drum
      D/A             Digital/Analog
      d4T             Stavudine
      DA              Data Acquisition
      DA              Data Administration
      DA              Data Automation
      DA              Data Available
      DA              Decimal Add
      DA              Desk Accessory
      DA              Direct Access
      DA              Direct Answer
      DA              Directory Assistance
      DA              Discrete Address
      DAA             Data Access Arrangement
      DAA             Data Authentication Algorithm
      DAA             Decimal Adjust for Addition
      DAC             Daily Administrative Check
      DAC             Data Acquisition and Control
      DAC             Design Automation Conference
      DAC             Digital-to-Analog Converter
      DAC             Disaster Assistance Center
      DAC             Discretionary Access Control
      DACC            Direct Access Communication Channel
      DACC            Directort Assistance Call Completion
      DACS            Data Acquisition Control System
      DACS            Digital Access Cross-Connect System
      DACS            Directory-Assistance Charging System
      DACU            Device Attachment Control Unit
      DAD             Device Action Diagram
      DADS            Digitally Assisted Dispatching System
      DAF             Decay Accelerating Factor
      DAIDS           Division of AIDS
      DAIS            Distributed Automatic Intercept System
      DAL             Data Access Language
      DAL             Database Administration Language
      DAL             Data Access Line
      DAL             Dedicated Access Line
      DALNET          Detroit Area Library Network
      DAM             Data Acquisition and Monitoring
      DAM             Direct Access Method
      DAMA            Demand Assignment Multiple Access
      DAME            Data Acquisition and Monitoring Equipment
      DAMPS           Data Acquisition Multiprogramming System
      DAO             Directory Assistance Operator
      DAP             Data Access Protocol
      DAP             Data Archiving Process
      DAP             Distributed Array Processor
      DAP             Division Advisory Panel
      DAP             Document Application Profile
      DAPC            Data Acquisition and Process Control
      DAPS            Direct Access Programming System
      DAR             Direct Access Register
      DARC            Division Alarm Recording Center
      DARI            Database Application Remote Interface
      DARPA           Defense Advanced Research Projects Agency
      DART            Daily Automatic Rescheduling Technique
      DART            Data Analysis Recording Tape
      DART            Developmental and Reproductive Toxicology
      DAS             Data Acquisition System
      DAS             Decimal Adjust After Subtraction
      DAS             Device Access Software
      DAS             Digital Analysis System
      DAS             Directory Assistance System
      DAS             Dual Attachment Station
      DASD            Direct-Access Storage Device
      DASP            Digital Array Signal Processor
      DASP            Digital-Assisted Services Program
      DAT             Data
      DAT             Data File
      DAT             Dementia of the Alzheimer Type
      DAT             Differential Aptitude Test
      DAT             Digital Audio Tape
      DAT             Dynamic Address Translation
      DATA            Defense Air Transport Administration
      DATACOM         Data Communications
      DATRI           Division of Aids Treatment and Research Initiative
      DATTA           Diagnostic and Therapeutic Technology Assessment
      DAU             Data Adapter Unit
      DAV             Data Above Voice
      DAV             Data Available
      DAV             Data Valid
      DAV             Digital Audio Video
      DAVAR           Dealer-Authorized Value-Added Retailer
      DAVE            Data Addition Verification and Editing
      DB              Data Base
      DB              Data Buffer
      DB              Data Bus
      DB              Database
      db              Decibel
      DB              Double-Blind
      DB              Dry Bulb
      DB2             Database 2
      DBA             Database Administrator
      DBA             Digital Business Architecture
      DBAC            Database Administration Center
      DBAS            Database Administration System
      DBC             Database Computer
      DBCS            Double-Byte Character Set
      DBD             Database Description
      DBDA            Database Design Aids
      DBDC            Database/Data Communications
      DBF             Database
      DBF             Database File
      DBI             Development At Birth Index
      DBIR            Directory of Biotechnology Information Resources
      DBM             Database Manager
      DBM             Distributed Database
      DBME            Database Management Environment
      DBMS            Database Management System
      DBO             Database Owner
      DBOO            Database Object Owner
      DBP             Database Processor
      DBRAD           Database Relational Application Directory
      DBRC            Database Recovery Control
      DBS             Database Server
      DBS             Database Service
      DBS             Direct Broadcast by Satellite
      DBS             Direct Broadcast Satellite
      DBTG            Database Task Group
      DC              Data Cartridge
      DC              Data Channel
      DC              Data Collection
      DC              Data Communication
      DC              Data Control
      DC              Define Constant
      DC              Direct Current
      DC              Directional Coupler
      DC              Disk Controller
      DC              Display Console
      DC              Document Control
      DCA             Defense Communications Agency
      DCA             Digital Communication Architecture
      DCA             Digital Communications Associates
      DCA             Distributed Communication Architecture
      DCA             Document Content Architecture
      DCAA            Dual-Call Auto-Answer
      DCB             Data Control Block
      DCBD            Define Control Block Dummy
      DCC             Data Collection Computer
      DCC             Data Communications Channel
      DCC             Data Country Code
      DCC             Digital Compact Cassette
      DCC             Digital Customer Center
      DCC             Display Computer Complex
      DCCT            Diabetes Control and Complications Trial
      DCCU            Data Communications Control Unit
      DCD             Data Carrier Detect
      DCE             Data Circuit-Terminating Equipment
      DCE             Data Communications Equipment
      DCE             Distributed Communicating Environment
      DCE             Distributed Computing Environment
      DCF             Data Communication Facility
      DCF             Data Compression Facility
      DCF             Data Count Field
      DCF             Distributed Communications Facilty
      DCF             Document Composition Facility
      DCF             Document Control Facility
      DCF             Driver Configuration File
      DCI             Data Communications Interrogation
      DCI             Display Control Interface
      DCL             Data Communications Link
      DCL             DEC Control Language
      DCL             Digital Command Language
      DCLU            Digital Carrier Line Unit
      DCM             Data Communications Multiplexer
      DCM             Digital Carrier Module
      DCM             Directory Control Module
      DCM             Display Control Module
      DCME            Digital Circuit Multiplexing Equipment
      DCMS            Data Capture and Management System
      DCMS            Distributed Call Measurement System
      DCMT            Document
      DCN             Data Control Network
      DCN             Design Change Notice
      DCNA            Data Communication Network Architecture
      DCO             Digital Central Office
      DCO             Digitally Controlled Oscillator
      DCP             Data Communications Processor
      DCP             Demand for Critical Parts
      DCP             Distributed Communications Processor
      DCP             Duplex Central Processor
      DCPS            Digitally Controlled Power Source
      DCR             Daily Change Report
      DCR             Data Conversion Receiver
      DCR             Design Change Request
      DCR             Dynamic Color Rendition
      DCRT            Division of Computer Research and Technology
      DCS             Data Center Services
      DCS             Data Collection System
      DCS             Data Control System
      DCS             Decompression Sickness
      DCS             Delta Clear to Send
      DCS             Digital Composition System
      DCS             Digital Cross-Connect System
      DCS             Direct Coupled System
      DCS             Distributed Communications System
      DCS             Distributed Computing System
      DCS             Distribution Control System
      DCSS            Digital Customized Support Services
      DCT             Database Configuration Tool
      DCT             Dictionary File
      DCT             Digital Carrier Trunk
      DCT             Discrete Cosine Transform
      DCTL            Direct Coupled Transistor Logic
      DCTN            Defense Commercial Telecommunications Network
      DCTS            Dimension Custom Telephone Service
      DCU             Decade Counting Unit
      DCU             Decimal Counting Unit
      DCU             Digital Credit Union
      DCW             Data Control Words
      DCX             Delta Clipper Experimental
      DD              Data Definition
      DD              Data Dictionary
      DD              Data Directory
      DD              Decimal Divide
      DD              Demand Draft
      DD              Digital Data
      DD              Digital Display
      DD              Disk Drive
      DD              Double Density
      DD              Drum Demand
      DDA             Digital Differential Analyzer
      DDA             Disk Drive Adaptor
      DDAS            Digital Data Acquisition System
      DDB             Device Dependent Bitmap
      DDBMS           Distributed Database Management System
      DDC             Data Distribution Center
      ddC             Dideoxycytidine
      DDC             Digital Data Converter
      DDC             Digital Display Converter
      DDC             Direct Digital Computer
      DDC             Direct Digital Control
      ddC             Zalcitabine
      DDCE            Digital Data Conversion Equipment
      DDCMP           Digital Data Communications Message Protocol
      DDCS            Distributed Database Connection Services
      DDCU            DC to DC Converter Unit
      DDD             Direct Distance Dialing
      DDE             Direct Data Entry
      DDE             Dynamic Data Exchange
      DDEML           Dynamic Data Exchange Manager Library
      DDG             Digital Display Generator
      DDH             Digital Distributed Hardware
      DDI             Device Driver Interface
      ddI             didanosine
      DDI             Dideoxyinosine
      DDIF            Digital Document Interchange Format
      DDK             Device Driver Kit
      DDK             Driver Development Kit
      DDL             Data Definition Language
      DDL             Data Description Language
      DDL             Document Description Language
      DDM             Distributed Data Management
      DDN             Defense Data Network
      DDNNIC          Defense Data Network Network Information Center
      DDOV            Digital Data Over Voice
      DDP             Datagram Delivery Protocol
      DDP             Digital Data Processor
      DDP             Distributed Data Processing
      DDPS            Digital Data Processing System
      DDR             Delta Data Set Ready
      DDRP            Dial Dictation Relay Panel
      DDS             Dataphone Digital Service
      DDS             Design Data Sheet
      DDS             Digital Data Service
      DDS             Digital Data Storage
      DDS             Digital Data System
      DDS             Digital Dataphone Service
      DDS             Digital Display Scope
      DDS             Digital Distributed Software
      DDS             Direct Dial Service
      DDS             Direct Digital Service
      DDS             Doctor of Dental Science
      DDSA            Derived-Design Strategic Activities
      DDSS            Diagnostic Decision Support System
      DDST            Denver Developmental Screening Test
      DDT             Digital Data Transmitter
      DDT             Dynamic Debugging Technique
      DDTE            Design Development Test and Evaluation
      DDV             Dialog Data Validation
      DDX             Digital Data Exchange
      DDX             Distributed Data Exchange
      DE              Data Entry
      DE              Decision Element
      DE              Device End
      DE              Dictation Equipment
      DE              Display Element
      DEA             Data Encryption Algorithm
      DEA             Drug Enforcement Agency
      DEC             Decimal
      DEC             Decision
      DEC             Decrement
      DEC             Digital Equipment Corporation
      DECIT           Decimal Digit
      DECR            Decrement
      DECUS           Digital Equipment Corporation User's Society
      DED             Data Element Dictionary
      DED             Double Error Detection
      DEE             Dextrous End Effector
      DEER            Directory of Environmental Education Resources
      DEET            Diethyltoluamide
      DEF             Default File
      DEF             Definition
      DEFT            Dynamic Error-Free Transmission
      DEIR            Dental Electronic Information Resource
      DEIS            Defense Energy Information System
      DEK             Data Encryption Key
      DEL             Delay
      DEL             Delete
      DELNI           Digital Ethernet Local Network Interconnect
      DEM             Demodulator
      DEM             Demonstration File
      DEMF            Display Exception Monitoring Facility
      DEMO            Demonstration
      DEMOD           Demodulator
      DEN             Document-Enabled Networking
      DENS            Density
      DENIX           Defense Environment Network and Information Exchange
      DEOS            Distance Education Online Symposium
      DER             Disulfiram-Ethanol Reaction
      DERP            Defective Equipment Replacement Program
      DES             Data Editing System
      DES             Data Encryption Standard
      DES             Data Entry Sheet
      DES             Description File
      DES             Differential Equation Solver
      DES             Diffuse Esophageal Spasm
      DES             Digital Encryption Standard
      DES             Digital Expansion System
      DEST            Destination
      DET             Device Execute Trigger
      DETAB           Decision Tables
      DEU             Data Encryption Unit
      DEU             Data Exchange Unit
      DEUNA           Digital Ethernet Unibus Network Adapter
      DEV             Development
      DEV             Device
      DEW             Distant Early Warning
      DF              Data Field
      DF              Device Flag
      DF              Direction Finding
      DF              Distributing Frame
      DF              Double Flag
      DFA             Design for Assembly
      DFA             Digital Flaw Analysis
      DFA             Direct Fluorescent Antibody
      DFC             Data Flow Control
      DFC             Digital File Check
      DFCU            Disk File Control Unit
      DFD             Data Flow Diagram
      DFDS            Data Facility Device Support
      DFDSM           Data Facility Distributed Storage Manager
      DFDSS           Data Facility Data Set Services
      DFE             Data Flow Editor
      DFEF            Data Facility Extended Function
      DFG             Diode Function Generator
      DFG             Discrete Frequency Generator
      DFHSM           Data Facility Hierarchial Storage Manager
      DFI             Development Flight Instrument
      DFM             Design for Manufacturing
      DFMR            Daily Fetal Movement Recording
      DFP             Data Facility Product
      DFP             District Focus Person
      DFPE            Data Flow Processing Element
      DFR             Disk File Read
      DFR             Double Frequency Recording
      DFRC            Dryden Flight Research Center
      DFS             Distributed File System
      DFSU            Disk File Storage Unit
      DFT             Design for Test
      DFT             Discrete Fourier Transform
      DFT             Disk Fault Tolerance
      DFT             Distributed Function Terminal
      DFU             Data File Utility
      DFW             Disk File Write
      DG              Data General
      dg              Decigram
      DG              Differential Generator
      DG              Diode Gate
      DG              Double Groove
      DGA             Direct Graphics Access
      DGIS            Direct Graphics Interface Standard
      DGNL            Diagonal
      DGPS            Differential Global Positioning System
      DGS             Data Gathering System
      DGSC            Defense General Supply Center
      DGT             Digit
      DHC             Dynamic Host Configuration
      DHCP            Decentralized Hospital Computer Program
      DHE             Data Handling Equipment
      DHHS            Department of Health and Human Services
      DHMH            Department of Health and Mental Hygiene
      DHSC            Distributed High-Speed Computing
      DI              Data In
      DI              Data Input
      DI              Data Interface
      DI              Device Independence
      DI              Diagnostic Imaging
      DI              Digital Input
      DIA             Document Interchange Architecture
      DIAD            Drum Information Assembler-Dispatcher
      DIAL            Data for Interchange at the Application
      DIAL            Digital Idle Asset Listing
      DIAL            Direct Information Access Line
      DIAL            Display Interactive Assembly Language
      DIAS            Defense Automatic Integrated System
      DIAS            Dynamic Inventory Analysis System
      DIB             Device Independent Bitmap
      DIB             Directory Information Bases
      DIBOL           Digital Business Oriented Language
      DIBS            Digital Integrated Business System
      DIC             Data Input Check
      DIC             Dictionary File
      DIC             Distributed Interactive Computing
      DICOM           Digital Imaging and Communications in Medicine
      DICT            Dictionary
      DID             Data Item Description
      DID             Digital Information Display
      DID             Direct Inward Dialing
      DIF             Data Interchange Facility
      DIF             Data Interchange Format
      DIF             Device Input Format
      DIF             Digital Interface
      DIF             Digital Interface Frame
      DIF             Direct Immunofluorescence
      DIF             Display Information Facility
      DIF             Document Interchange Format
      DIFF            Difference
      diff            Differential
      DIGICOM         Digital Communications System
      DIIS            DDN Installation and Integration Support
      DIL             Daily Instruction Logs
      DILE            Drug-Induced Lupus Erythematosus
      DIM             Data In the Middle
      DIM             Device Interface Module
      DIMA            Data Information Management Architecture
      DINS            Digital Information Network Service
      DIO             Data Input and Output
      DIOB            Digital Input/Output Buffer
      DIOF            Display Input/Output Facility
      DIP             Display Information Processor
      DIP             Document Image Processing
      DIP             Dual-In-Line Package
      DIP             Dual-In-Line Pin
      DIR             Department of Information Resources
      DIR             Directory
      DIRT            Design In Real-Time
      DIS             Disconnect
      DIS             Distributed Information System
      DIS             Distributed Interactive Simulation
      DIS             Draft International Standard
      DISA            Data Interchange Standards Association
      DISA            Defense Information Systems Agency
      DISA            Direct Inward System Access
      DISAC           Digital Simulator and Computer
      DISCON          Defense Integrated Secure Communications Network
      DISER           Digital Information Systems External Resources
      DISI            Directory Information Services Infrastructure
      DISOS           Distributed Office Support System
      DISP            Displacement
      DISTED          Distance Education
      DIT             Directory Information Tree
      DIV             Divide
      DIV             Divider
      DIV             Division
      DIVA            Digital Input Voice Answer-Back
      DJ              Dump Job
      DJD             Degenerative Joint Disease
      DKA             Diabetic Ketoacidosis
      DL              Data Language
      DL              Data Link
      DL              Diode Logic
      DL              Distribution License
      DL              Download
      DL/1            Data Manipulation Language 1
      DLA             Defense Logistics Agency
      DLC             Data-Link Control
      DLC             Digital Loop Carrier
      DLC             Duplex Line Control
      DLCC            Data-Link Control Chip
      DLCF            Data-Link Control Field
      DLCU            Digital Line Carrier Unit
      DLE             Data-Line Escape
      DLE             Data-Link Escape
      DLE             Discoid Lupus Erythematosus
      DLF             Document Library Facility
      DLI             Data Link Interface
      DLL             Data Link Layer
      DLL             Dial Long Lines
      DLL             Dynamic Link Library
      DLM             Dynamic Link Module
      DLN             Digital Library Network
      DLO             Data Link Occupied
      DLO             Dead Letter Office
      DLR             DOS LAN Requester
      DLS             Damped-Least-Squares
      DLS             Data Link Control
      DLS             Device Level Selection
      DLS             Dial Line Service
      DLS             Digital Line Section
      DLS             Digital Link Service
      DLT             Data Loop Transceiver
      DLT             Decision Logic Table
      DLTU            Digital Line Trunk Unit
      DLUC            Digital Line Unit Control
      DLY             Delay
      DM              Data Management
      DM              Data Manager
      DM              Data Model
      DM              Dead Memory
      DM              Delta Modulation
      DM              Dialog Manager
      DM              Differential Mode
      DM              Docking Module
      DM              Dungeon Master
      DMA             Direct Memory Access
      DMAC            Disseminated Mycobacterium Avium Complex
      DMACD           Disseminated Mycobacterium Avium Complex Disease
      DMARD           Disease-Modifying Antirheumatic Drug
      DMAS            Distributed Management Accounting System
      DMC             Digital Microcircuit
      DMCL            Digital Modem Command Language
      DMD             Data Modeling Desktop
      DME             Digital Management Education
      DME             Direct Machine Environment
      DME             Distance-Measuring Equipment
      DME             Distributed Management Environment
      DMED            Digital Message Entry Device
      DMERT           Duplex Multiple Environment Real Time
      DMF             Digital Matched Filters
      DMF             Distributed Management Facility
      DMI             Desktop Management Interface
      DMI             Digital Multiplexed Interface
      DML             Data Manipulation Language
      DML             Data Manipulation Logic
      DMOS            Diffusion Metal Oxide Semiconductor
      DMOS            Diffusive Mixing of Organic Solutions
      DMOS            Discrete Metal Oxide Semiconductor
      DMPL            Digital Microprocessor Plotter Language
      DMPL            Digital Microprocessor Processing Language
      DMS             Data Management Services
      DMS             Data Management System
      DMS             Development Management System
      DMS             Digital Multiplex Switcher
      DMSP            Defense Meteorological Satellite Program
      DMSP            Depot Maintenance Support Plan
      DMT             Design Maturity Test
      DMTF            Desktop Management Task Force
      DMU             Data Manipulation Unit
      DMWR            Depot Maintenance Work Requirement
      DN              Data Name
      DN              Decimal Number
      DN              Directory Number
      DN              Down
      DNA             Defense Nuclear Agency
      DNA             Deoxyribonucleic Acid
      DNA             Digital Network Architecture
      DNA             Digital Noise Alliance
      DNA             Does Not Apply
      DNA             Dynamic Network Architecture
      DNC             Direct Numerical Control
      DNC             Dynamic Network Controller
      DNCB            Dinitrochlorobenzene 
      DNCS            Distributed Network Control System
      DNI             DECnet Network Interface
      DNI             Desktop Network Interface
      DNIC            Data Network Identification Code
      DNIS            Dialed Number Identification Service
      DNP             Dinitrophenol
      DNR             Dialed Number Recorder
      DNR             Do Not Resuscitate
      DNS             Domain Name Server
      DNS             Domain Name System
      DNSO            Defense Network Systems Organization
      DNSSEC          Domain Name System Security Working Group
      DO              Data Out
      DO              Defense Order
      DO              Designated Official
      DO              Digital Output
      DO              Division Office
      DO              Duty Officer
      DOA             Date of Admission
      DOA             Dead on Arrival
      DOB             Date of Birth
      DOC             Data Optimizing Computer
      DOC             Department of Commerce
      DOC             Department of Communications
      DOC             Department of Correction
      DOC             Document
      DOC             Documentation File
      DOC             Dynamic Overload Control
      DOCS            Disk Oriented Computer System
      DOCS            Display Operator Console System
      DOCS            Distributed Office Communication System
      DOCUS           Display-Oriented Computer Usage System
      DOD             Department of Defense
      DODISS          Department of Defense Index of Specifications and Standards
      DOE             Department of Energy
      DOE             Distributed Objects Everywhere
      DOE             Dyspnea On Exertion
      DOED            Department of Education
      DOF             Degree of Freedom
      DOF             Device Operating Failures
      DOH             Division of Health
      DOI             Date of Injury
      DOI             Department of the Interior
      DOIT            Diabetes Care through Information Technology
      DOJ             Department of Justice
      DOL             Department of Labor
      DOL             Display-Oriented Language
      DOM             Data on Master Group
      DOM             District Operations Manager
      DOMF            Distributed Object Management Facility
      DOMSAT          Domestic Satellite Service
      DOP             Detailed Operating Procedure
      DOP             Disaster Operations Plan
      DOPA            Dihydroxyphenylalanine
      DOPIC           Document of Programs In Core
      DOPS            Digital Optical Projection System
      DOR             Digital Optical Recording
      DOR             Direct Oxide Reduction
      DORE            Dynamic Object Rendering Environment
      DORIS           Direct-Order Recording and Invoicing System
      DOS             Department of State
      DOS             Digital Operating System
      DOS             Disk Operating System
      DOS/VS          Disk Operating System/Virtual Storage
      DOS/VSE         Disk Operating System/Virtual Storage Extended
      DOSF            Distributed Office Support Facility
      DOT             Department of Transportation
      DOTS            Digital Office Timing Supply
      DOV             Data Over Voice
      DP              Data-Processing
      DP              Diagnostic Process
      DP              Dial Port
      DP              Dial Pulsing
      DP              Digit Present
      DP              Disk Pack
      DP              Draft Proposal
      DP              Dynamic Programming
      DPA             Demand Protocol Architecture
      DPA             Distributed Power Architecture
      DPAC            Dedicated Plant Assignment Center
      DPB             Drive Parameter Block
      DPC             Data Processing Center
      DPC             Direct Program Control
      DPCM            Data Pulse Code Modulation
      DPCX            Distributed Processing Control Executive
      DPD             Data Processing Department
      DPD             Data Processing Division
      DPE             Data Path Extender
      DPE             Data Processing Equipment
      DPEX            Distributed Processing Executive Operating System
      DPF             Data Processing Facility
      DPG             Data Processing Group
      DPG             Digital Patern Generator
      DPH             Department of Public Health
      DPH             Diphenylhydantoin
      DPI             Data Processing Installation
      DPI             Dots-Per-Inch
      DPL             Descriptor Privilege Level
      DPM             Data Processing Machine
      DPM             Digital Pattern Meter
      DPM             Disintegrations-per-Minute
      DPM             Documents-Per-Minute
      DPMA            Data Processing Management Association
      DPMI            DOS Protected-Mode Interface
      DPMS            Data Project Management System
      DPMS            Display Power Management Signalling
      DPNSS           Digital Private Network Signalling System
      DPO             Data Phase Optimization
      DPPX            Distributed Processing Programming Executive
      DPR             Dynamic Path Reconnect
      DPS             Data Processing Service
      DPS             Data Processing Subsystem
      DPS             Data Processing System
      DPS             Display PostScript
      DPS             Distributed Presentations Services
      DPS             Document Processing System
      DPSK            Differential Phase-Shift Keying
      DPSS            Data Processing Sub-System
      DPST            Disaster Preparedness Support Team
      DPT             Diphtheria Toxoid
      DPU             Data Processing Unit
      DQ              Development Quotient
      DQC             Data Quality Control
      DQDB            Distributed Queue Data Base
      DQDB            Distributed Queue Dual Bus
      DQL             Database Query Language
      DQL             DataEase Query Language
      DQM             Data Quality Monitors
      DQT             Design Quality Test
      DR              Data Ready
      DR              Data Received
      DR              Data Recorder
      DR              Data Reduction
      DR              Deficiency Report
      DR              Digital Resolver
      DR              Disk-Reader
      DR              Drive
      DR              Drum
      DR&E            Defense Research and Engineering
      DRAM            Dynamic Random Access Memory
      DRAW            Direct Read-After-Write
      DRC             Data Reduction Compiler
      DRC             Data Resource Center
      DRC             Disaster Research Center
      DRCS            Dynamically Redefinable Character Set
      DRCT            Directories and Resource Information Services
      DRD             Data Reading Device
      DRD             Data Requirement Documentation
      DRD             Delta Received
      DRDA            Distributed Relational Data Architecture
      DRDW            Direct-Read During-Write
      DRG             Diagnosis Related Group
      DRI             Defense Research Internet
      DRI             Digital Reduction Interpreter
      DRI             Digital Research Incorporated
      DRIPS           Drinking Water Informatio Processing Support
      DRM             Digital Radio Meters
      DRMU            Digital Remote Measurement Unit
      DRO             Data Request Output
      DRO             Destructive Readout
      DRO             Differential Reinforcement Of Other Behaviors
      DRO             Digital Readout
      DROS            Disk Resident Operating System
      DRP             Distribution Resource Planning
      DRS             Data Rate-Select
      DRS             WordPerfect Driver Resource File
      DRT             Data Recovery Tester
      DRT             Diode Recovery Tester
      DRV             Data Recovery Vehicle
      DRV             Device Driver File
      DRV             Drive
      DRW             Direct Retina Write
      DRW             Drawing File
      DS              Data Scanning
      DS              Data Segment
      DS              Data Send
      DS              Data Server
      DS              Data Set
      DS              Data Synchronization
      DS              Decimal Subtract
      DS              Define Storage
      DS              Define Symbol
      DS              Detection System
      DS              Device Selector
      DS              Directory Service
      DS              Disk Storage
      DS              Double-Sided
      DS              Drum Storage
      ds-DNA          Double Stranded DNA
      DSA             Define Symbol Address
      DSA             Density Spectral Array
      DSA             Dial System Assistance
      DSA             Digital Storage Architecture
      DSA             Directory Service Agent
      DSA             Directory System Agent
      DSA             Distributed Systems Architecture
      DSAS            Data Set Analysis System
      DSB             Double Sideband
      DSC             Data Stream Compatability
      DSC             Direct Satelite Communications
      DSC             Document Service Center
      DSCB            Data Set Control Block
      DSCS            Defense Satellite Communications System
      DSCS            Desk Side Computer System
      DSD             Data Structure Diagram
      DSD             Division of Shortage Designation
      DSDD            Double-Sided Double-Density
      DSDS            Dataphone Switched Digital Service
      DSE             Data Storage Equipment
      DSE             Data Structure Editor
      DSE             Data Switching Equipment
      DSE             Data Systems Engineering
      DSE             Distributed Systems Environment
      DSEE            Domain Software Engineering Environment
      DSGN            Designation
      DSHD            Double-Sided High-Density
      DSI             Data Subscriber Interface
      DSI             Defense Simulation Internet
      DSI             Digital Speech Interpolation
      DSIN            Digital Software Information
      DSL             Data Set Label
      DSL             Data Set Language
      DSL             Data Simulation Language
      DSL             Digital Simulation Language
      DSL             Digital Subscriber Line
      DSLC            Data Subscriber Line Carrier
      DSLO            Distributed System License Option
      DSM             Device Strategy Module
      DSM             Digital Switching Module
      DSM             Distinguished Service Medal
      DSM             Distributed Systems Manufacturing
      DSM-III-R       Diagnostic And Statistical Manual
      DSMA            Digital Sense Multiple Access
      DSMC            Digital Service Monthly Charge
      DSN             Data Set Name
      DSN             Data System News
      DSN             Deep Space Network
      DSN             Digital Services Network
      DSN             Distributed Systems Network
      DSNX            Distributed System Node Executive
      DSO             Data Security Officer
      DSO             Digital Storage Oscilloscope
      DSO             Distinguished Service Order
      DSOM            Distributed System Object Model
      DSOM            Distributed Systems Operations and Management
      DSP             Defense Support Program
      DSP             Digital Signal Processor
      DSR             Data Send Ready
      DSR             Data Set Ready
      DSR             Device Status Register
      DSR             Digital Standard Runoff
      DSR             Digital Stepping Recorder
      DSR             Digital Storage Relay
      DSR             Dynamic Service Register
      DSRD            Data Set Rate Detect
      DSRD            Data Signal Rate Detector
      DSREDS          Digital Storage and Retrieval and Engineering Data Systems
      DSRI            Digital Standard Relational Interface
      DSS             Data Station Selector
      DSS             Decision Support System
      DSS             Digital Satellite System
      DSS             Digital Signal Standard
      DSS             Direct Station Selection
      DSSI            Digital Storage Systems Interconnect
      DSU             Data Service Unit
      DSU             Device Switching Unit
      DSU             Digital Service Unit
      DSU             Digital Synchronization Unit
      DSU             Disk Storage Unit
      DSUG            Data Systems Users Group
      DSW             Data Status Word
      DSX             Digital Signal Cross-Connect
      DSX             Distributed System Executive
      DT              Data Translator
      DT              Data Transmission
      DT              Data Transmit
      DT              Dial-Tone
      DT              Digital Technique
      DT              Down Time
      DT              Dye Test
      DTA             Data
      DTA             Data File
      DTA             Delayed Treatment Area
      DTA             Disk Transfer Area
      DTAS            Digital Test Access System
      DTB             Data Transfer Bus
      DTC             Design To Cost
      DTD             Data Type Descriptions
      DTD             Document-Type Definition
      DTDM            Digital Terminal Data Module
      DTE             Data Terminal Emulation
      DTE             Data Terminal Equipment
      DTF             Dial-Tone-First
      DTF             Document Transmission Facility
      DTG             Data Time Group
      DTG             Direct Trunk Group
      DTI             Digital Trunk Interface
      DTIB            Decision Table Information Bulletin
      DTIC            Defense Technical Information Center
      DTID            Design and Test Integration Division
      DTIF            Digital Transmission Interface Frame
      DTL             Design Team Leader
      DTL             Digital Transistor Logic
      DTL             Diode-Transistor Logic
      DTLC            Dialog Tag Language Compiler
      DTM             Delay Time Multiplier
      DTMF            Dual-Tone-Multi-Frequency
      DTMS            Database and Transaction Management System
      DTN             Digital Telephone Network
      DTP             Desktop Publishing
      DTP             Directory Tape Processor
      DTP             Distributed Transaction Processing
      DTR             Daily Transaction Reporting
      DTR             Data Terminal Ready
      DTR             Deep Tendon Reflex
      DTR             Digital Telemetering Register
      DTRC            David Taylor Research Center
      DTS             Data Transmission System
      DTS             Digital Tandem Switch
      DTS             Digital Termination Service
      DTS             Digital Termination System
      DTSO            Document Type Structure Outline
      DTST            Dial Tone Speed Test
      DTTU            Data Transmission Terminal Unit
      DTU             Demand Transmission Unit
      DTU             Digital Tape Unit
      DTW             Dynamic Time Warping
      DU              Decision Unit
      DU              Disk-Usage
      DUA             Directory User Agent
      DUAL            Dynamic Universal Assembly Language
      DUAT            Direct User Access Terminal
      DUE             Drug Usage Evaluation
      DUNS            Data Universal Numbering System
      DUP             Duplicate
      DUR             Duration
      DUT             Device-Under-Test
      DUV             Data-Under-Voice
      DV              DESQview Script File
      DVI             Digital Video Interactive
      DVI             Digital Voice Interactive
      DVM             Data Voice Multiplexor
      DVM             Doctor of Veterinary Medicine
      DVMA            Direct Virtual Memory Access
      DVN             Digital Video Network
      DVR             Device Driver
      DVST            Direct Viewing Storage Tube
      DVT             Deep Venous Thrombosis
      DVT             Design Verification Test
      DVX             Digital Voice Exchange
      DW              Data Word
      DW              Double Word
      DWI             Diffusion-Weighted Imaging
      DWIM            Do-What-I-Mean
      DX              Distance
      DX              Distance Service
      DX              Document Transmission
      DX              Duplex
      DXAM            Distributed Indexed Access Method
      DXB             Drawing Interchange Binary File
      DXC             Data Exchange Control
      DXF             Data Exchange Format
      DXF             Data Transfer File
      DXF             Drawing Exchange Format
      DXI             Data Exchange Interface
      DXS             Diffuse X-Ray Spectrometer
      DXT             Data Extract
      DXTF            Data Extract Facility
      E               Electrical
      E               Electronic
      E               Element
      E               Enable
      E               Error
      EA              Effective Address
      EA              Extended Address
      EAA             Essential Amino Acids
      EAAT            Equal Access Alternative Technology
      EAC             Electronic Access Control
      EAEO            Equal-Access End Office
      EAG             Equipment Advisory Group
      EAG             Exposure Assessment Group
      EAM             Electrical Accounting Machine
      EAM             Embedded Atom Method
      EAN             European Academic Network
      EAN             European Article Numbering Code
      EAP             Employee-Assistance Program
      EAR             Export Administration Regulations
      EARN            European Academic Research Network
      EARN            The European Academic and Research Network
      EAROM           Electrically-Alterable Read-Only Memory
      EAS             Electronic Accounting System
      EAS             Engineering Administration System
      EAS             Extended Announcement System
      EAS             Extended Area Service
      EASD            Equal Access Service Date
      EASD            European Association for the Study of Diabetes
      EASE            Experimental Assembly of Structures in EVA
      EB-VCA          Epstein-Barr Viral Capsid Antigen
      EBB             Extended Bulletin Board
      EBBS            Electronic Bulletin Board System
      EBCB            European Bank of Computer Programs in Biotechnology
      EBCDIC          Extended Binary-Coded Decimal Interchange Code
      EBDI            Electronic Business Data Interchange
      EBEA            Epstein-Barr Early Antigen
      EBI             Elective Brain Irradiation
      EBI             Equivalent Background Input
      EBL             Estimated Blood Loss
      EBNA            Epstein-Barr Nuclear Antigen
      EBR             Electronic Beam Recording
      EBRT            Electron Beam Radiation Therapy
      EBS             Emergency Broadcast System
      EBV             Epstein-Barr Virus
      EBVEA           Epstein-Barr Virus Early Antigen
      EBVNA           Epstein-Barr Virus Nuclear Antigen
      EBVR            Epstein-Barr Virus Receptor
      EC              Electronic Calculators
      EC              Endothelial Cell
      EC              Engineering Change
      EC              Epidermal Cell
      EC              Error-Checking
      EC              Error-Correcting
      EC              European Community
      EC              Exchange-Carrier
      EC              External Cost
      ECA             Electronics and Computer Assembly
      ECA             Engineering Change Assessment
      ECAD            Electrical Computer-Aided Design
      ECAD            Engineering Computer-Aided Design
      ECAP            Electronic Circuit Analysis Program
      ECAP            Electronic Customer Access Program
      ECASS           Electronically Controlled Automatic Switching System
      ECASS           Export Control Automated Support System
      ECB             Electronic Claims Billing
      ECB             Electronic Code Book
      ECB             Error-Control Block
      ECC             Electronic Computer Concepts
      ECC             Emergency Cardiac Care
      ECC             Emitter-Coupled Circuits
      ECC             Error-Checking and Correction
      ECC             Error-Correction Capability
      ECC             Error-Correcting Code
      ECCM            Electronic Counter-Counter Measures
      ECD             E  Coli Database
      ECD             Enhanced Color Display
      ECDO            Electronic Community Dial Office
      ECEH            European Center for Environment and Health
      ECF             Enhanced Connectivity Facility
      ECF             Eosinophil Chemotactic Factor of Anaphylaxis
      ECF             Extended Care Facility
      ECG             Electrocardiogram
      ECHO            European Commission Host Organisation
      ECIA            Economic Crime Investigators Association
      ECIX            Environmental Exchange
      ECL             Emitter Coupled Logic
      ECL             Equipment Component List
      ECL             Error Code Logging
      ECL             Error Correction Logic
      ECLO            Emitter Coupled Logic Operator
      ECLSS           Environmental Control and Life Support
      ECM             Electronic Countermeasures
      ECM             Error-Correction Mode
      ECM             Extracellular Matrix
      ECME            Electronic Countermeasures Equipment
      ECMO            Extra-Corporeal Membrane Oxygenation
      ECN             Electronic Change Notice
      ECN             Engineering Computer Network
      ECNE            Enterprise Certified NetWare Engineer
      ECO             Engineering Change-Order
      ECOS            Extended Communications Operating System
      ECP             Effective Core Potential
      ECP             Engineering Change Proposals
      ECP             Enhanced Capabilities Port
      ECP             Executive Control Program
      ECPA            Electronic Communications Privacy Act
      ECPT            Electronic Coin Public Telephone
      ECS             Educational Computing Service
      ECS             Environmental Control System
      ECS             Executive Control System
      ECS             Extended Core Storage
      ECSA            Exchange Carriers Standards Association
      ECT             Eclectroconvulsive Therapy
      ECT             Emission Computed Tomography
      ECT             Extra-Cerebral Toxoplasmosis
      ECTL            Electronic Communal Temporal Lobe
      ECTL            Emitter Coupled Transistor Logic
      ECTS            European Credit Transfer System
      ECU             Environmental Control Unit
      ECX             Entry Color X Terminal
      ED              Department of Education
      ED              Editor
      ED              Electrical Differential
      ED              Erase Display
      ED              Error-Detecting
      ED              External Device
      EDA             Electronic Design Automation
      EDA             Electronic Differential Analyzer
      EDA             Exploratory Data Analysis
      EDAC            Error Detection and Correction
      EDACS           Environmental Data Access and Control System
      EDC             Electronic Desk Calculator
      EDC             Electronic Digital Computer
      EDC             End-Diastolic Counts
      EDC             Enhanced Data-Correction
      EDC             Error Detection and Correction
      EDC             Error Detection Code
      EDC             Estimated Date of Confinement
      EDCOM           Editor and Compiler
      EDCS            Engineering Document Control System
      EDCW            External Device Control Word
      EDD             Economic Development Directory
      EDDC            Extended Distance Data Cable
      EDE             External Document Exchange
      EDF             Execution Diagnostic Facility
      EDGAR           Electronic Data Gathering Analysis and Retrieval
      EDGE            Electronic Data Gathering Equipment
      EDHE            Experimental Data Handling Equipment
      EDI             Eating Disorders Inventory
      EDI             Electronic Data Interchange
      EDI             Electronic Dissemination of Information
      EDI             Electronic Document Interchange
      EDIF            Electronic Design Interchange Format
      EDIN            Economic Development Information Network
      EDIS            Emergency Dial Information System
      EDIS            Emergency Digital Information Service
      EDLC            Ethernet Data-Link Control
      EDO             Extended Duration Orbiter
      EDOS            Electronic Dissemination of Opinions System
      EDOS            Enhanced DOS
      EDOS            Extended Disk Operating System
      EDP             Electronic Data Processing
      EDPC            Electronic Data Processing Center
      EDPE            Electronic Data Processing Equipment
      EDPEO           Electronic Data Processing Equipment Office
      EDPM            Electronic Data Processing Machine
      EDPS            Electronic Data Processing System
      EDRS            Engineering Data Resources Services
      EDS             Electronic Data Systems
      EDS             Excessive Daytime Sleepiness
      EDS             Exchangeable Disk Storage
      EDSAC           Electronic Delay Storage Automatic Calculator
      EDSI            Enhanced Small Device Interface
      EDT             Eastern Daylight Time
      EDTA            Ethylenediaminetetraacetic Acid
      EDTCC           Electronic Data Transmission Communications Central
      EDU             Education Computer Systems
      EDU             Electronic Display Unit
      EDU             Education Designation in Domain Name System
      EDV             End-Diastolic Volume
      EDX             Electrodiagnosis
      EE              Electrical Engineer
      EE              External Environment
      EEA             Efficiency of Electrical Activity
      EEC             European Economic Community
      EEC             Extended-Error-Correction
      EECT            End-to-End Call Trace
      EED             Electro-explosive Device
      EEE             Electronic Equipment Enclosures
      EEG             Electroencephalography
      EEHLLAPI        Entry Emulator High Level Language Applications
      EEI             Equipment-to-Equipment Interface
      EEL             Epsilon Extension Language
      EEMS            Enhanced Expanded Memory Specification
      EEMS            Enhanced Extended Memory System
      EEOC            Equal Employment Opportunity Council
      EEPROM          Electrically Erasable Programmable Read-Only Memory
      EERC            Earthquake Engineering Research Center
      EEVT            Electrophoresis Equipment Verification Test
      EF              Emission Factor
      EF              Extended-Field
      EFA             Essential Fatty Acids
      EFA             Extended File Attribute
      EFF             Electronic Frontier Foundation
      EFI             Electromechanical Frequency Interference
      EFIS            Electronic Flight Instrumentation System
      EFL             Emitter-Follower Logic
      EFLA            Extended Four-Letter Acronym
      EFM             Extended Functionality Modules
      EFMI            European Federation for Medical Informatics
      EFPH            Equivalent Full Power Hours
      EFRAP           Electronic Feeder Route Analysis Program
      EFT             Electronic Fund Transfer
      EFTS            Electronic Funds Transfer System
      EG              Emergency Generator
      eg              Example
      EGA             Enhanced Graphics Adapter
      EGA             Estimated Gestational Age
      EGD             Esophagogastroduodenoscopy
      EGP             Electronic Graphics Processing
      EGP             Exterior Gateway Protocol
      EGRET           Energetic Gamma Ray Experiment Telescope
      EGS             Electro-Galvanic Stimulation
      EHC             Environmental Health Center
      EHF             Extremely-High-Frequency
      EHR             Environmental Health Research
      EHLLA           Enhanced High-Level Language Application
      EHR             Education and Human Resources
      EHV             Extra-High Voltage
      EHV             Extremely High Voltage
      EI              Electron Ionization
      EIA             Electronic Industries Association
      EIA             Electronics Industry Association
      EIA             Environmental Impact Assessment
      EIA             Enzyme Immunoassay
      EIA             Exercise-Induced Asthma
      EICBBS          Electric Ideas Clearinghouse bulletin board system
      EID             Electroimmunodiffusion
      EIDOS           Electronic Imaging Document System
      EIDS            Electronic Information Dissemination Services
      EIES            Electronic Information Exchange System
      EIP             Executive Interface Program
      EIP             Extended Internet Protocol
      EIR             Equipment Improvement Recommendation
      EIS             Electronic Information Services
      EIS             End Interruption Sequence
      EIS             Enterprise Integration Services
      EIS             Executive Information System
      EIS             Executive Interface Structure
      EIS             Extended Instruction Set
      EISA            Enhanced Industry Standard Architecture
      EISA            Expanded Industry Standard Architecture
      EISA            Extended Industry Standard Architecture
      EISB            Electronic Imaging Standards Board
      EISS            Economic Impact Study System
      EISS            European Intelligence Support System
      EITB            Engineering Industry Training Board
      EIU             Extended Interface Unit
      EJC             Electronic Journal of Communication
      EJVC            Electronic Journal on Virtual Culture
      EKG             Electrocardiogram
      EKS             Endemic Kaposi's Sarcoma
      EKTS            Electronic Key Telephone Service
      ELAN            Enhanced Local Area Network
      ELD             Electroluminescent Display
      ELDS            Exchange Line Data Service
      ELF             Employee Locator Facility
      ELF             Extremely-Low-Frequency
      ELI             Extensible Language One
      ELINT           Electronic Intelligence
      ELISA           Enzyme-Linked Immunosorbent Assay
      ELM             Early Language Milestone
      ELS             Entry-Level System
      ELS             Expert Learning Systems
      ELSA            European Law Student's Association
      ELV             Expendable Launch Vehicle
      EM              Electron Microscopy
      EM              Electronic Mail
      EM              Encryption Module
      EM              End-of-Medium
      EM              Engineering Model
      EM              Estimation-Maximization
      EM              Explanatory Model
      EMA             Electron-Microscopic Autoradiography
      EMA             Electronic Mail Association
      EMA             Electronic Messaging Association
      EMA             Enterprise Management Architecture
      EMB             Ethambutol
      EMB             Extended Memory Blocks
      EMBL            EMBnet BioInformation Resource
      EMBL            European Molecular Biology Laboratory
      EMC             Electromagnetic Capability
      EMC             Electromagnetic Compatibility
      EMC             Electromagnetic Conductivity
      EMD             Electromechanical Dissociation
      EME             Electromagnetic Emission
      EME             Emergency Power Engineering
      EMF             Electromagnetic Field
      EMF             Electromotive Force
      EMI             Electromagnetic Interference
      EMIC            Environmental Mutagen Information Center
      EMIS            Educational Management Information System
      EMIS            Electromagnetic Isotope Separation
      EMIT            Enzyme Multiplication Immunoassay Technique
      EML             Electronic Mail File
      EML             Equipment Modification List
      EMM             Expanded Memory Manager
      EMP             Electromechanical Power
      EMP             Electromagnetic Pulse
      EMPT            Electromagnetic Pulse Transformer
      EMR             Electromagnetic Radiation
      EMR             Electronic Medical Record
      EMR             Estimated Minimum Requirements
      EMR             Executive Management Responsibility
      EMS             Electronic Mail System
      EMS             Electronic Management System
      EMS             Electronic Medical System
      EMS             Electronic Message Service
      EMS             Element Management System
      EMS             Emergency Medical Service
      EMS             Enterprise Messaging Server
      EMS             Expanded Memory Specification
      EMT             Emergency Medical Technician
      EMTIC           Emission Measurement Technical Information Center
      EMU             Extravehicular Mobility Unit
      ENA             Electronic Networking Association
      ENC             Encoded File
      END             End-of-Data
      ENET            Ethernet
      ENFIA           Exchange Network Facility for Interstate Access
      ENG             Electronic News Gathering
      ENG             Engineering
      ENQ             Enquire
      ENQ             Enquiry Character
      ENS             Enterprise Naming System
      ENS             Enterprise Network Services
      ENT             Ears Nose And Throat
      ENT             Entry
      ENTA            European Network for the Treatment of AIDS
      EO              End Office
      EO              Executive Order
      EOA             End-of-Address
      EOB             End-of-Block
      EOC             End-of-Conversation
      EOC             End-of-Cycle
      EOD             End-of-Data
      EODAD           End-of-Data Address
      EOE             Electronic Order Exchange
      EOE             Errors and Omissions Excepted
      EOF             End-of-File
      EOG             Electro-Oculogram
      EOI             End-or-Identify
      EOIM            Evaluation of Oxygen Interaction with Materials
      EOJ             End-of-Job
      EOL             End-of-Life
      EOL             End-of-Line
      EOLM            End-of-Line Marker
      EOM             End-of-Message
      EOM             End-of-Mission
      EOM             Extra-Ocular Movements
      EON             End-of-Number
      EOP             End-of-Output
      EOP             End-of-Program
      EOQ             Economic Order Quantity
      EOR             End-of-Record
      EOR             End-of-Reel
      EOR             End-of-Run
      EORTC           European Organization for Research on Treatment of Cancer
      EOS             Earth Observing System
      EOS             Electro-Optical System
      EOS             Eosinophil
      EOS             Extended Operating System
      EOT             End-of-Tape
      EOT             End-of-Transmission
      EOT             End-of-Transmission Character
      EOTT            End of Toll Trunking
      EOV             End-of-Volume
      EP              Electronic Publishing
      EP              End Point
      EP              End-of-Program
      EP              Entry Point
      EP              Extended-Play
      EP/PLA          Extended Provisions/Program License Agreement
      EPA             Enhanced Performance Architecture
      EPA             Environmental Protection Agency
      EPB             Exec Parameter Block
      EPB             External Proton Beam
      EPBX            Electronic Private Branch Exchange
      EPC             Easy Processing Channel
      EPC             Electronic Program Control
      EPC             Embedded Print Command
      EPD             Eukaryotic Promoter Database
      EPG             External Products Group
      EPHISS          Emergency Public Health Information Surveillance System
      EPI             Electronic Photography and Imaging
      EPI             Environmental Policy Institute
      EPI             Excess Program Income
      EPIC            Educational Products Information Exchange
      EPIX            Emergency Preparedness Information Exchange
      EPL             Effective Privilege Level
      EPLD            Electrically Programmable Logic Device
      EPLS            Engineering Price List System
      EPO             Erythropoietin
      EPO             Exogenous Erythropoietin
      EPP             Enhanced Parallel Port
      EPP             Executive Partner Program
      EPR             Electron Paramagnetic Resonance
      EPR             Equipment Performance Report
      EPRI            Electric Power Research Institute
      EPROM           Electronically Programmable Read-Only Memory
      EPROM           Erasable Programmable Read-Only Memory
      EPS             Electronic Publishing Specialist
      EPS             Electrophysiologic Studies
      EPS             Encapsulated PostScript
      EPS             Encapsulated PostScript File
      EPS             Engineered Performance Standards
      EPS             Even Parity Select
      EPSCOR          Experimental Program to Stimulate Computer Research
      EPSCS           Enhanced Private Switched Communication Service
      EPSF            Encapsulated PostScript Files
      EPSP            Excitatory Postsynaptic Potential
      EPSS            Experimental Packet Switching System
      EPU             Electrical Power Unit
      EPZ             Emergency Planning Zone
      EQ              Environmental Qualification
      EQ              Equal
      EQ              Equalizer
      EQ              Equate
      EQLIST          Earthquake Lists
      EQP             Equipment
      EQU             Equal
      EQU             Equate
      ER              Energy Research
      ER              Enhanced Radiation
      ER              Error Register
      ERA             Electronic Reading Automation
      ERA             Environmental Research Applications
      ERA             Estrogen Receptor Assay
      ERA             Evoked Response Audiometry
      ERAS            Electronic Residency Application Service
      ERBF            Effective Renal Blood Flow
      ERBS            Earth Radiation Budget Satellite
      ERC             Emergency Response Coordinator
      ERCP            Endoscopic Retrograde Cholangiopancreatography
      ERF             Emergency Restoration Facility
      ERG             Electroretinogram
      ERI             Enable Receive Data
      ERIC            Educational Resources Information Center
      ERIN            Environmental Resources Information Network
      ERIS            Electronic Results Inquiry System
      ERLL            Enhanced Run-Length-Limited
      ERM             Entity-Relationship Model
      ERM             Enzyme Reference Material
      ERO             Early Release Observations
      EROM            Eraseable Read-Only Memory
      ERP             Effective Radiated Power
      ERP             Effective Refractory Period
      ERP             Emergency Response Plan
      ERPF            Effective Renal Plasma Flow
      ERR             Error
      ERS             Economic Research Service
      ERS             Emergency Response Level
      ERT             Earth Resources Technology
      ERT             Emergency Response Team
      ERT             Estrogen Replacement Therapy
      ERW             Enhanced Radiation Weapon
      ERX             Electronic Remote Switching
      ERX             Entity Relationship Expert
      ES              Electronic Storage
      ES              Engineering Study
      ES              Environmental Studies
       ES              Evoking Strength
      ES              Equipment Specification
      ES              Expert System
      ES              Extra Segment
      ESA             European Space Agency
      ESAC            Electronic Surveillance Assistance Center
      ESAC            Electronic Systems Assistance Center
      ESB             Emergency Service Bureau
      ESB             Entry Systems Business
      ESC             Escape
      ESC             Escape Character
      ESCA            Electron Spectroscopy for Chemical Analysis
      ESD             Electronic Systems Development
      ESD             Electrostatic Storage Deflection
      ESD             Emergency Shutdown Device
      ESD             Engineering Service Division
      ESD             Environmental Sensing Device
      ESD             External Symbol Dictionary
      ESDI            Enhanced Small Device Interface
      ESDI            Enhanced Standard Device Interface
      ESDN            Extended Software Defined Network
      ESDP            Educational Services Development and Publshing
      ESDS            Entry Sequence Data Set
      ESE             Expert System Environment
      ESF             Economic Support Fund
      ESF             Engineered Safety Feature
      ESF             Erythropoietic Stimulating Factor
      ESF             External Source Format
      ESG             Engineering Systems Group
      ESG             Environmental Systems Group
      ESHIC           Environmental Safety and Health Information Center
      ESI             Enhanced Serial Interface
      ESI             Externally Specified Indexing
      ESIS            European Space Information System
      ESM             Electronic Support Measures
      ESMD            Enhanced Storage Module Device
      ESN             Electronic Serial Number
      ESN             Electronic-Switched-Network
      ESNET           Energy Sciences Network
      ESO             Engineering Support Operations
      ESOC            European Space Operations Center
      ESP             Early Support Program
      ESP             Electro-Sensitive Programming
      ESP             Encapsulating Security Payload
      ESP             Enhanced Serial Port
      ESP             Enhanced Service Provider
      ESP             Extrasensory Perception
      ESR             Effective Signal Radiated
      ESR             Electron Spin Resonance
      ESR             Erythrocyte Sedimentation Rate
      ESRD            End-Stage Renal Disease
      ESRDSI          End-Stage Renal Disease Severity Index
      ESRIN           European Space Research Institute
      ESS             Electronic Switching System
      EST             Electric Shock Therapy
      EST             Estimate
      ESTDB           Expressed Sequence Tag Database
      ESTEC           European Space and Technology Center
      ESU             Electrostatic Unit
      ESV             End Systolic Volume
      ESVN            Executive Secure Voice Network
      ESW             Error Status Word
      ESWL            Extracorporeal Shockwave Lithotripsy
      ET              Earth Terminal
      ET              Educational Technology
      ET              Elapsed Time
      ET              Exchange Termination
      ET              Exchange Termination Equipment
      ET              External Tank
      ETA             Energy Technology Assessment
      ETA             Estimated Time-of-Arrival
      ETANN           Electrically Trainable Analog Neural Network
      ETB             End-of-Transmission Block
      ETB             Education Technology Branch
      ETC             Education and Training Center
      ETC             Electronic Transaction Cycle
      ETC             Estimate to Complete
      ETC             Estimated Time-of-Completion
      ETD             Estimated Time-of-Departure
      ETF             Electronic Toll-Fraud
      ETFD            Electronic Toll-Fraud Device
      ETG             Environmental Technology Group
      ETH             Ethionamide
      ETI             Enable Transmitter
      ETL             Ending Tape Label
      ETL             Equipment Test Lab
      ETLA            Extended Three-Letter Acronym
      ETN             Electronic Tandem Network
      ETNET           Extended Temporal Network
      ETO             Engineering Technology Office
      ETOH            Ethyl Alcohol
      ETP             Electronic Technical Publishing
      ETP             Extended Term Purchase
      ETS             Educational Testing Service
      ETS             Electronic Tandem Switching
      ETS             Electronic Telegraphic System
      ETS             Electronic Translation System
      ETS             Environmental Tobacco Smoke
      ETSI            European Telecommunications Standards Institute
      ETT             Endotracheal Tube
      ETT             Exercise Test Technologist
      ETT             Exercise Tolerance Test
      ETT             Extra-Thyroidal Thyroxine
      ETX             End-of-Text
      ETX             End-of-Text Character
      EU              End-User
      EU              Execution Unit
      EUCS            Edinburgh University Computing Service
      EUNET           European UNIX Network
      EUP             Environmental Use Permit
      EURECA          European Retrievable Carrier
      EUTELSAT        European Telecommunications Satellite
      EUV             Extreme Ultraviolet
      EUVE            Extreme Ultraviolet Explorer
      EV              Estimated Variance
      EVA             Extra-Vehicular Activity
      EVAL            Evaluation
      EVGA            Expanded Video Graphics Array
      EVPI            Expected Value of Perfect Information
      EVX             Electronic Voice Exchange
      EW              Electronic Warfare
      EWO             Engineering Work Order
      EWOS            European Workshop on Open Systems
      EWS             Enhanced Work Station
      EX              Execute
      EXAM            Examine
      EXCH            Exchange
      EXCOM           Executive Committee
      EXCP            Except
      EXCP            Execute Channel Program
      EXD             External Device
      EXE             Executable File
      EXEC            Execute
      EXEC            Execution
      EXEC            Executive
      EXL             Exercise Leader
      EXNOR           Exclusive-Nor Gate
      EXOR            Exclusive-Or Gate
      EXP             Exponent
      EXT             External
      EXT             Extremities
      F               Fahrenheit
      F               Feedback
      F               Filter
      F               Fixed
      F               Frequency
      FA              Forced Answer
      FA              Frame Aligner
      FA              Fully Automatic
      FAA             Federal Aviation Administration
      FABS            Financial and Administration Business Systems
      FAC             Facility
      FAC             File Access Code
      FAC             Financial Administrative Control
      FACE            Fathers and Children for Equality
      FACE            Field-Alterable Control Element
      FACP            Fellow of the American College of Physicians
      FACS            Facilities Assignment and Control System
      FACS            Flexible Accounting Control System
      FACT            Fully Automatic Cataloging Technique
      FACT            Fully Automatic Compiler-Translator
      FACT            Fully Automatic Compiling Technique
      FAES            Foundation for Advanced Education in the Sciences, Inc.
      FAI             Functional Aerobic Impairment
      FAIDS           Feline AIDS
      FAIS            Foreign Affairs Information System
      FAM             Fast Access Memory
      FANA            Fluorescent Antinuclear Antibody
      FAO             Food and Agriculture Organization of the United Nations
      FAP             File Access Protocol
      FAP             Financial Analysis Program
      FAP             Fortran Assembly Program
      FAPI            Family Application Program Interface
      FAQ             Frequently-Asked Question
      FAQL            Frequently-Asked Questions List
      FAR             Failure Analysis Report
      FAR             Federal Acquisition Regulation
      FAR             Federation of American Research
      FARE            Fluid Acquisition and Resupply Experiment
      FARNET          Federation of American Research Networks
      FAS             Fetal Alcohol Syndrome
      FAS             Foreign Agricultural Service
      FAST            Fast Auroral Snapshot Explorer
      FASST           Flexible Architecture Standard System Technology
      FAST            First Application System Test
      FAT             File-Allocation Table
      FAT             Fluorescent Antibody Test
      FAX             Facsimile
      FAX             Fax File
      FB              Files Busy
      FB              Fixed Block
      FB              Followed By
      FBA             Fixed Block Architecture
      FBC             Fully-Buffered Channel
      FBI             Federal Bureau of Investigations
      FBP             Fibrin-Breakdown Product
      FBR             Fast Breeder Reactor
      FBS             Fasting Blood Sugar
      FC              File Control
      FC              File Conversion
      FC              Frame Control
      FC              Fuel Cycle
      FC&A            Frequency Control and Analysis
      FCA             Functional Configuration Audit
      FCB             File-Control Block
      FCC             Federal Communications Commission
      FCC             Federal Computer Conference
      FCCSET          Federal Coordinating Council on Science Engineering and Technology
      FCDR            Failure Cause Data Report
      FCFS            First Come First Served
      FCI             Flow Cytometric Immunophenotyping
      FCI             Flux-Changes-per-Inch
      FCIC            Federal Computer Investigations Committee
      FCL             Feedback Control Loop
      FCO             Field Change Order
      FCP             File Control Processor
      FCRC            Federal Contract Research Center
      FCS             First Customer Ship
      FCS             Frame Check Sequence
      FCSI            Fibre Channel Systems Initiative
      FD              File Description
      FD              Flexible Disk
      FD              Floppy Disk
      FD              Full Duplex
      FDA             Food And Drug Administration
      FDC             Floppy Disk Controller
      FDC             Functional Design Criteria
      FDDI            Fiber-Distributed Data Interface
      FDDI            Fiber-Optic Data Distribution Interface
      FDE             Fluid Dynamics Experiment
      FDHD            Floppy Drive High Density
      FDISK           Fixed Disk
      FDM             Frequency-Division Multiplexing
      FDOS            Fixed Disk Operating System
      FDP             Federal Demonstration Project
      FDP             Field-Development Program
      FDR             Fast Dump Restore
      FDX             Full Duplex
      FDX             Full Duplex Transmission
      FE              Field Engineers
      FE              Finite Element
      FE              Format Effector
      FE              Framing Error
      Fe2O3           Ferric Oxide
      FEA             Finite-Element Analysis
      FEA             Fluid Experiment Assembly
      FEC             Forward Error-Correcting
      FED             Far End Data
      FEE             French Echocardiographic Equipment
      FEL             First Element Launch
      FelV            Feline Leukemia Virus
      FEMA            Federal Emergency Management Agency
      FEMP            Federal Energy Management Program
      FEP             Field Evaluation Program
      FEP             Financial Evaluation Program
      FEP             Front-End Processor
      FEPS            Facility and Equipment Planning System
      FERC            Federal Energy Regulatory Commission
      FERS            Federal Employees Retirement System
      FES             Functional Electrical Stimulation
      FESDK           Far East Software Development Kit
      FET             Federal Excise Tax
      FET             Field-Effect Transistor
      FETI            Fluorescent Energy Transfer Immunoassay
      FETP            Field Epidemiology Training Programme
      FEWS            Follow-on Early Warning System
      FF              Fixed Fee
      FF              Form-Feed
      FFA             Free Fatty Acids
      FFB             Flexible Fiberoptic Bronchoscopy
      FFM             Fat-Free Mass
      FFP             Fresh Frozen Plasma
      FFRDC           Federally-Funded Reseach and Development Center
      FFS             Fast File System
      FFT             Fast Fourier Transform
      FFT             Flicker Fusion Threshold
      fg              Femtogram
      FG              Foreground
      FGND            Frame Ground
      FGS             Fine Guidance Sensors
      FHA             Federal Housing Administration
      FHC             Family Health Center
      FHD             Fixed-Head-Disk
      FHLMC           Federal Home Loan Mortgage Association
      FHM             Fetal Heart Monitor
      FHMA            Federal Home Mortgage Association
      FHR             Fetal Heart Rate
      FHS             Fetal Heart Sounds
      FHST            Fixed Head Star Tracker
      FHT             Fetal Heart Tones
      FI              Fault Isolation
      FIA             Fluoroimmunoassay
      FIB             Focused Ion Beam
      FIE             Federal Information Exchange
      FIF             Fractal Image Format
      FIFO            First-In First-Out
      FIFO            Floating Input-Floating Output
      FIG             Figure
      FIGO            International Federation of Gynecology and Obstetrics
      FIGS            Figure Shift
      FILO            First-In Last-Out
      FIM             Functional Independence Measure
      FIMS            Forms Interface Management System
      FIN             Field Information Notice
      FIO             Frequency In-and-Out
      FIP             Field-Inspection Procedure
      FIP             File Processor Buffering
      FIPS            Federal Information Processing Standard
      FIR             Far Infrared
      FIR             Field Information Report
      FIR             Finite Impulse Response
      FIRMR           Federal Information Resource Management Regulation
      FIS             Floating-point Instruction Set
      FISP            Fast Imaging with Steady Precession
      FISU            Fill-In Signal-Unit
      FIT             Federal Information Technologies
      FIT             Field Investigation Team
      FITB            Fill-In-The-Blanks
      FITS            Flexible Image Transport System
      FIV             Feline Immunodeficiency Virus
      FIX             Federal Information Exchange
      FK              Function Key
      FL              Fixed-Length
      FLC             Fuzzy Logic Controllers
      FLD             Field
      FLG             Flag
      FLIC            Function Living Index-Cancer
      FLICC           Federal Library and Information Center Committee
      FLIH            First-Level Interrupt Handler
      FLIR            Forward-Looking Infrared
      FLL             FoxPro Link Library
      FLOPS           Floating-Point Operations per Second
      FLRA            Federal Labor Relations Authority
      FLS             Floating License Server
      FLT             Flight
      FM              Facility Module
      FM              File Maintenance
      FM              Format
      FM              Frequency Modulation
      FMAC            Facility Maintenance and Control
      FMAP            Field Manufacturing Automated Process
      FMB             Federal Maritime Board
      FMC             Financial Management Center
      FMCS            Federal Mediation and Conciliation Service
      FME             Frequency Measuring Equipment
      FMEA            Failure Mode and Effects Analysis
      FMEVA           Floating Point Means and Variance
      FMF             Familial Mediterranean Fever
      FMFB            Frequency Modulation and Feedback
      FMIC            Field Manufacturing Information Center
      FMM             Finite Message Machine
      FMP             Field Manufacturing Plan
      FMS             File Management System
      FMS             Financial Management Service
      FMS             Finite State Machine
      FMS             Flexible Manufacturing System
      FMS             Forms Management System
      FMT             Format
      FMT             Figure of Merit
      FMT             Function of Merit
      FMT             TeX Format File
      FNA             Fine Needle Aspiration
      FNAC            Fine-Needle Aspiration Cytology
      FNAL            Fermi National Accelerator Laboratory
      FNC             Federal Networking Council
      FNR             Fibronectin Receptor
      FNT             Font
      FNT             Font File
      FO              Fiber Optic
      FO              Field Office
      FO              Foreign Office
      FO              Forward Observer
      FOA             Fiber Optic Adapter
      FOAC            Federal Office Automation Center
      FOB             Fiberoptic Bronchoscopy
      FOBT            Fecal Occult Blood Test
      FOC             Faint Object Camrera
      FOC             Fiber-Optic Communications
      FOCAS           Field Office Commission Automation System
      FOCUS           Federation on Computing in the U S 
      FOIA            Freedom of Information Act
      FOIL            File-Oriented Interpretive Language
      FOIMS           Field Office Information Management System
      FOIRL           Fiber Optic Inter-Repeater Link
      FOMAU           Fiber Optic Media Access Unit
      FOMC            Field Operations Management Committee
      FON             Fiber Optics Network
      FON             Font File
      FON             Phone Directory File
      FON             Phone File
      FOPT            Fiber Optic Photo Transfer
      FOR             FORTRAN Source Code File
      FOR             Free-on-Rail
      FORTRAN         Formula Translator
      FOS             Faint Object Spectrograph
      FOS             Fiberoptic Sigmoidoscopy
      FOSE            Federal Office Systems Exposition
      FOSSIL          Fido/Opus/Seadog Standard Interface Layer
      FOV             Field-of-View
      FP              File Protect
      FP              Fixed Point
      FP              Floating-Point
      FP              Functional Protocol
      FPA             Floating-Point Adapter
      FPA             Floating-Point Accelerator
      FPAP            Floating-Point Array Processor
      FPE             Floating-Point Engine
      FPE             French Postural Experiment
      FPE             Fortran Programming Environment
      FPGA            Field-Programmable Gate-Array
      FPHA            Federal Public Housing Authority
      FPL             Functional Programming Languages
      FPLA            Field-Programmable Logic-Array
      FPLS            Field-Programmable Logic Sequencer
      FPM             Feet-Per-Minute
      FPO             Field Post Office
      FPP             Floating Point Package
      FPP             Floating-Point Processor
      FPR             False Positive Rate
      FPRS            Federal Property Resources Service
      FPS             Fast Packet Switching
      FPS             Feet-Per-Second
      FPS             Floating Point Systems
      FPS             Frames-Per-Second
      FPT             Forced Perfect Termination
      FPU             Floating Point Processor Unit
      FPU             Floating-Point Unit
      FQDN            Fully Qualified Domain Name
      FR              Fault-Reporting
      FR              Federal Register
      FR              Flat-Rate
      FR              Frame Relay
      FRAM            Ferroelectric Random-Access Memory
      FRAT            Free Radical Assay Test
      FRB             Federal Reserve Board
      FRBBS           Fire Research BBS
      FRC             Front Range Consortium
      FRC             Functional Residual Capacity
      FRC             Fusion Research Center
      FRED            Federal Reserve Economic Data
      FRED            Frame Editor
      FREIDA          Fellowship and Residency Electronic Interactive Database Access
      FRESBB          Federal Real Estate Sales Bulletin Board
      FRICC           Federal Research Internet Coordinating Committee
      FRISC           Fast Reduced Instruction Set Computer
      FRPG            Fantasy Role-Playing-Game
      FRPS            Field Reliability Performance Studies
      FRQ             Facility Request Message
      FRR             Flight Readiness Review
      FRS             Federal Reserve System
      FRS             Formal Reporting System
      FRS             WordPerfect Graphics Driver File
      FRU             Field-Replaceable Unit
      FS              Field Service
      FS              File Separator
      FS              File System
      FS              Full Scale
      FSA             Finite State Automation
      FSB             Free Storage Block
      FSBPRT          Free Storage Block Printing
      FSCM            Federal Supply Code for Manufacturers
      FSCR            Full Scale Range
      FSD             File System Driver
      FSE             Field Service Engineer
      FSF             Free Software Foundation
      FSG             Financial Systems Group
      FSH             Follicle Stimulating Hormone
      FSIQ            Full-Scale Intelligence Quotient
      FSK             Frequency Shift Keying
      FSL             Field Service Logistics
      FSL             Forms Source Language
      FSP             Fibrin Split Products
      FSR             Feedback Shift Register
      FSS             Fast System Switch
      FSS             Federal Supply Service
      FSS             Flight Service Station
      FSS             Flight Support System
      FSV             Fullscreen Viewer
      FSW             Feet of Salt Water
      FSW             Female Sex Worker
      FT              Fault Tolerant
      FT              Field Test
      FT              File Transport
      FT              Full Time
      FT              Functional Test
      FTA             Fluorescent Treponemal Antibody
      FTAM            File Transfer Access and Management
      FTAM            File Transfer Access Method
      FTAM            File Transfer and Management
      FTC             Federal Trade Commission
      FTC             Frequency Time Control
      FTCH            Full Text Character-Based
      FTD             Functional Test Demonstration
      FTE             Full-Time Equivalent
      FTF             File-Transfer Facility
      FTG             Final Trunk Group
      FTI             Free Thyroxine Index
      FTIR            Fourier Transform Infrared
      FTL             Faster Than Light
      FTLV            Feline T-Lymphotropic Lentivirus
      FTM             Fault Tolerant Multiprocessor System
      FTN             Field Television Network
      FTND            Full-Term Normal Delivery
      FTP             File Transfer Program
      FTP             File Transfer Protocol
      FTRS            Full Text Retrieval System
      FTS             Federal Telecommunication System
      FTS             Federal Telephone System
      FTS             File Transfer Service
      FTS             File Transfer Support
      FTSG            Full-Thickness Skin Graft
      FTT             Failure To Thrive
      FTZ             Free Trade Zone
      FUD             Fear Uncertainty and Doubt
      FUI             File Update Information
      FUN             Function
      FUNC            Function
      FUNET           Finnish University and Research Network
      FUO             Fever Of Unknown Origin
      FUSE            Far Ultraviolet Spectroscopy Explorer
      FV              Influenza Vaccine
      FWA             Fraud and Waste
      FWB             Full Weight Bearing
      FWD             Front-Wheel Drive
      FWIW            For What It's Worth
      FWT             Fast Wavelet Transform
      FX              Foreign Exchange
      FY              Fiscal Year
      FYI             For Your Information
      FYS             For Your Signature
      G               Gauss
      G               Giga
      G               Gravitational Constant
      G               Gravity
      GA              General Assembly
      GA              Go Ahead
      GaAs            Gallium Arsenide
      GABA            Gamma-Amino-Butyric Acid
      GAC             General Adolescent Clinic
      GAC             General Atomics Corporation
      GADO            General Aviation District Office
      GAL             Generic Array Logic
      GAM             Graphic Access Method
      GAMA            Graphics-Assisted Management Application
      GAMS            Guide to Available Mathematical Software
      GAN             Gas Analysis
      GAN             Generating and Analysing Networks
      GAN             Global Area Network
      GAO             General Accounting Office
      GAO             Government Accounting Office
      GAP             General Assembly Program
      GAP             Generic Authentication Protocol
      GAPI            Gateway Application Programming Interface
      GAR             Growth Analysis and Review
      GARNET          Global Applied Research Network
      GAS             Get Away Special
      GASP            Gas Plasma Display
      GASP            Generalized Academic Simulation Program
      GATB            General Aptitude Test Battery
      GATT            General Agreement on Trade and Tariffs
      GAW             Guaranteed Annual Wage
      GAZT            Glucuronide Derivative of Azidothymidine
      GB              Gigabyte
      GBASE           Genomic Database of the Mouse
      GBIP            General Purpose Interface Bus
      GBS             Group Bridging Service
      GBS             Guillain-Barre Syndrome
      GC              Graphic Context
      GC              Guidance Computer
      GCA             General Communications Architecture
      GCA             Gestation Corrected Age
      GCC             Gnu C Compiler
      GCD             Greatest Common Divisor
      GCD             Greatest Common Multiple
      GCDB            Geographic Coordinate Database
      GCL             Graphics Command Language
      GCM             Global Climate Modeling
      GCOS            General Comprehensive Operating Supervisor
      GCR             Group Code Recording
      GCRC            General Clinical Research Center
      GCS             Glasgow Coma Score
      GCS             Group Control System
      GCV             Ganciclovir
      GD&R            Grinning, Ducking, and Running
      GDA             Global Data Area
      GDB             Genome Database
      GDC             General Design Criteria
      GDC             Greatest Common Divisor
      GDDM            Graphical Data Display Manager
      GDF             Graphical-Display File
      GDI             Graphic Device Interface
      GDI             Graphical Device Interface
      GDM             Gestational Diabetes Mellitus
      GDMS            Generalized Data Management System
      GDMS            Glow Discharge Mass Spectrometry
      GDS             Geriatric Depression Scale
      GDS             Graphic Display System
      GDT             Graphics Development Toolkit
      GE              General Equipment
      GE              Greater Than or Equal
      GECOS           General Electric Comprehensive Operating System
      GEENET          Global Environmental Epidemiology Network
      GEIS            General Electric Information Systems
      GELNET          Global Environmental Library Network
      GEM             Graphics Environment Manager
      GEMI            GSA Electronic Management Information
      GEMS            General Educational Management System
      GEN             Generator
      GENIE           General Electric Network for Information Exchange
      GEO             Geosciences
      GEOMAG          Geomagnetic Field Values
      GEOS            Graphic Environment Operating System
      GERD            Gastroesophageal Reflux Disease
      GERM            Generalized Entity-Relationship Model
      GERT            Graphic Evaluation Review Technique
      GFCI            Ground Fault Circuit Interrupter
      GFE             Government-Furnished Equipment
      GFP             Government-Furnished Property
      GFR             Grim File Reaper
      GH              Gigahertz
      GHCD            Growth Hormone Concentration and Distribution
      GHRS            Goddard High Resolution Spectrograph
      GHZ             Gigahertz
      GI              Government Issue
      GIDS            Generalized Intelligent Decision System
      GIF             Graphics Interchange Format
      GIGO            Garbage-In Garbage-Out
      GILS            Government Information Locations System
      GIML            Generalized Information Management Language
      GIOC            General Input/Output Controller
      GIPS            Giga Instructions-Per-Second
      GIPS            Ground Information Processing System
      GIRS            Generalized Information Retrieval System
      GIS             General Inquiry System
      GIS             Generalized Information System
      GIS             Geographic Information System
      GIS             Graphical Information System
      GISD            Generic Internet Service Description
      GIX             Global Internet Exchange
      GJP             Graphic Job Processor
      GKS             Graphical Kernel Standard
      GKS             Graphical Kernel System
      GLC             Gas-Liquid Chromatography
      GLIS            Global Land Information System
      GLM             Gigabit Link Module
      GLOMR           Global Low Orbit Message Relay
      GLY             Glossary File
      GLY             Glossary File Extension
      GM              Game-Master
      GM              Gay Men
      GM              Grateful Med
      GMAP            General Macro Assembly Program
      GME             Graduate Medical Education
      GMENAC          Graduate Medical Education - National Advisory Committee
      GMIS            General Management Information System
      GML             Generalized Mark-up Language
      GMT             General Machine Test
      GMT             Geometric Mean Titers
      GMT             Greenwich-Mean-Time
      GND             Ground
      GND             System Ground
      GNN             Global Network Navigator
      GNP             Gross National Product
      GNU             Gnu's Not Unix
      GOALI           Grant Opportunities for Academic Liaison with Industry
      GOCA            Graphic Object Content Architecture
      GOCI            General Operator-Computer Interaction
      GOCO            Government-Owned Contractor-Operated
      GOE             Government-Owned Equipment
      GOES            Geostationery Operational Environmental Satellite
      GOP             General Operating Procedures
      GOR             General Operational Requirement
      GOS             Grade of Service
      GOSAMR          Gelation of Sols: Applied Microgravity Research
      GOSIP           Government Open Systems Interconnection Profile
      GOSIP           Government OSI Profile
      GOV             Other U S  Government in Domain Name System
      GP              Gravity Probe
      GP              Group Processor
      GPA             General Purpose Analysis
      GPA             Global Programme on AIDS
      GPA             Grade-Point Average
      GPAC            General Purpose Analog Computer
      GPC             General Purpose Computer
      GPD             Gas Plasma Display
      GPD             General Purpose Discipline
      GPDC            General Purpose Digital Computer
      GPDS            General Purpose Display System
      GPF             General Protection Fault
      GPI             General Paralysis of the Insane
      GPI             General Purpose Interface
      GPI             Graphical Programming Interface
      GPIB            General-Purpose Interface Bus
      GPL             General Public License
      GPL             General Purpose Language
      GPL             Generalized Programming Language
      GPL             Graphics Programming Language
      GPLP            General Purpose Linear Programming
      GPO             General Post Office
      GPO             Government Printing Office
      GPR             General Purpose Register
      GPS             Graphic Programming Services
      GPS             Global Positioning System
      GPSI            Graphics Processor Software Interface
      GPSS            General Purpose Simulation System
      GPSS            General Purpose Systems Simulator
      GPV             General Public Virus
      GPV             Global Programme for Vaccines
      GPX             Graphics Processor Accelerator
      GQL             Graphical Query Language
      GR              General Relief
      GR              Grant Reimbursement
      GR              Group
      GRA             Graduate Research Assistant
      GRACE           Graphic Arts Composing Equipment
      GRE             Graphics Engine
      GREP            Global Regular Expression and Print Program
      GRF             Graph File
      GRH             Growth Hormone Releasing Hormone
      GRID            Graphical Interactive Display
      GRIN            Gradient Index
      GRIPS           Government Raster Image Processing Software
      GRO             Gamma Ray Observatory
      GRP             Group
      GRP             Group File
      GRS             Generalized Retrieval System
      GRS             Graph-Rewriting Systems
      GRS             Great Red Spot
      GS              General Systems
      GS              Graphics Standard
      GS              Gray Scale
      GS              Group Separator
      GS              Guide Star
      GSA             General Services Administration
      GSAM            Generalized Sequential Access Method
      GSB             General Systems Business
      GSC             Gas-Solid Chromatography
      GSC             Guide Star Catalog
      GSD             Geometric Standard Deviation
      GSFC            Goddard Space Flight Center
      GSG             Government Systems Group
      GSH             Glutathione
      GSH             Growth Stimulating Hormone
      GSI             Grand Scale Integration
      GSM             Generalized Sequential Machine
      GSM             Global System Mobile
      GSO             Geosynchronous Orbit
      GSOC            German Space Operation Center
      GSR             Galvanic Skin Response
      GSS             Graphic Service System
      GSS             Guided Self-Scheduling
      GST             Greenwich Sidereal Time
      GSTS            Ground-Based Surveillance and Tracking System
      GSW             Gun-Shot Wound
      GT              Game Theory
      GT              Greater Than
      GT              Group Technology
      GTC             General Telephone Company
      GTC             Grand Tour Cluster
      GTE             General Telephone and Electric
      GTE             General Telephone Electronics
      GTF             Ground Test Facility
      GTO             Geosynchronous Transfer Orbit
      GTO             Graphics Test Organizer
      GTS             Gamma Transfer Service
      GTT             Global Title Transmission
      GTT             Glucose Tolerance Test
      GUI             Graphical User Interface
      GUIDE           Graphical User Interface Design Editor
      GULP            General Utility Library Program
      GUT             Grand Unified Theory
      GVHD            Graft-Vs-Host Disease
      GVHR            Graft-Vs-Host Reaction
      GVU             Graphics Visualization Usability
      GWEN            Ground Wave Emergency Network
      GX              Graphics Extended
      GXT             Graded Excercise Test
      GXTT            Graded Exercise Tolerance Test
      GZ              Ground Zero
      H               Hacker
      H               Half-Word
      H               Hardware
      H               Header File
      H               Hexidecimal
      H&S             Health and Safety
      h/s             Hardware/Software
      H/W             Hardware
      HAA             Hepatitis-Associated Antigen
      HAA             Hospital Activity Analysis
      HACCP           Hazard Analysis Critical Control Point
      HACD            Home Area Customer Dialing
      HACE            High-Altitude Cerebral Edema
      HAE             Hereditary Angioedema
      HAI             Hemagglutination Inhibition
      HAL             Hard-Array Logic
      HAL             Heuristically Programmed Algorithmic Computer
      HALAN           Houston Area Library Automated Network
      HANE            Hereditary Angioneurotic Edema
      HAP             Hazardous Air Pollutant
      HAP             Host Access Protocol
      HAPE            High-Altitude Pulmonary Edema
      HAQ             Health Assessment Questionnaire
      HARC            Houston Area Research Center
      HARH            High Altitude Retinal Hemorrhages
      HASP            Houston Automated Spooling Program
      HAT             Hashed Address Table
      HAT             Heparin-Associated Thrombocytopenia
      HAV             Hepatitis A Virus
      HAVAB           Hepatitis A Virus Antibody
      HAZW            Hazardous Waste Database
      HB              Handbook
      HBA             Host Bus Adapter
      HBAB            Hepatitus B Antibody
      HBC             Hepatitis B Core Antigen
      HBC             High Blood Cholesterol
      HBCU            Historically Black Colleges and Universities
      HBDI            Human Biological Data Interchange
      HBIG            Hepatitis B Immune Globulin
      HBO             Hyperbaric Oxygen Therapy
      HBP             High Blood Pressure
      HBT             Homologous Blood Transfusion
      HBV             Hepatitis B Virus
      HC              Handling Capacity
      HC              Hard Copy
      HC              Hybrid Computer
      HC              Hydrophobic Core
      HCDS            High Capacity Digital Service
      HCFA            Health Care Financing Administration
      HCI             Hardness Critical Item
      HCI             Host Control Interface
      HCI             Human-Computer Interaction
      HCI             Human-Computer Interface
      HCIG            Health Care Industry Group
      HCL             Host Control Links
      HCL             Hydrochloric Acid
      HCMM            Heat Capacity Mapping Mission
      HCPW            Health Care Professional Workstation
      HCSDS           High-Capacity Satellite Digital Service
      HCTDS           High-Capacity Terrestrial Digital Service
      HCTZ            Hydrochlorothiazide
      HCV             Hepatitis C Virus
      HCW             Health-Care Workers
      HD              Half-Duplex
      HD              Hard-Disk
      HD              Heavy-Duty
      HD              High-Density
      HDA             Head Disk Assembly
      HDAM            Hierarchical Direct Access Method
      HDB             Hybridoma Databank
      HDBV            Host-Database View
      HDC             Hard Disk Controller
      HDCS            Human Diploid Cell Strain
      HDCV            Human Diploid Cell Rabies Vaccine
      HDD             Hard Disk Drive
      HDDS            High-Density Data System
      HDE             High-Dependency Environment
      HDG             Heading
      HDL             Hardware Description Language
      HDL             High-Density Lipoprotein
      HDLC            High-Density Lipoprotein Cholesterol
      HDLC            High-Level Data-Link Control
      HDN             Hemorrhagic Disease of The Newborn
      HDR             Header
      HDSC            High-Density Signal-Carrier
      HDTV            High-Definition Television
      HDTV            High-Density Television
      HDW             Hardware
      HDX             Half-Duplex
      HE              High Eccentricity Orbit
      HE              Human Error
      HEAA            Higher Education Act Amendment
      HEAL            Health Education Assistance Loan Program
      HEAO            High Energy Astronomical Observatory
      HEAP            Home-Energy Assistance Program
      HEB             High Energy Beam
      HEEO            Highly Elliptical Earth Orbit
      HEHN            Home Economics and Human Nutrition
      HEI             Health Effects Institute
      HEK             Human Epidermal Keratinocytes
      HEL             High-Energy Laboratory
      HELIN           Higher Education Library Information Network
      HELIO           Heliocentric
      HELP            Health Education and Lifestyles Program
      HEM             Hybrid Electromagnetic Wave
      HEMT            High-Electron Mobility Transistor
      HeNe            Helium-Neon
      HEO             High Earth Orbit
      HEP             Heterogeneous Element Processor
      HEP             High-Energy Physics
      HEP             Human Error Probability
      HEPA            High-Efficiency Particulate Air Filter
      HEPNET          High-Energy Physics Network
      HERC            Hercules
      HERF            High-Energy Radio Frequency
      HERO            Health Education Resource Organization
      HERO            Higher Education Opportunities for Minorities and Women
      HERO            Higher Education Resources and Opportunities
      HESI            High Energy Solar Imager
      HEU             Highly Enriched Uranium
      HEV             Hepatitis E Virus
      HEX             Handicapped Educational Exchange
      HEX             Hexadecimal
      HF              High Frequency
      HF              Human Factors
      HFD             Health Fitness Director
      HFE             Human Factors Engineering
      HFI             Health Fitness Instructor
      HFJV            High-Frequency Jet Ventilation
      HFR             Hardware Failure Rate
      HFS             Hierarchical File System
      HG              Hercules Graphics
      HG              Hydrogen Gas
      HGA             Hercules Graphics Adapter
      HGA             High Gain Antenna
      HGC             Hercules Graphic Card
      HGG             Human Gamma Globulin
      HGH             Human Growth Hormone
      HH              Half-Height
      HH              Helpful Hints
      HH              Hour
      HH              Hours
      HH/MM           Hours/Minutes
      HHANES          Hispanic Health and Nutrition Examination Survey
      HHC             Home Health Care
      HHMI            Howard Hughes Medical Institute
      HHS             Department of Health and Human Services
      HI              Hazard Index
      HIAP            Human Intracisternal A-type Retroviral Particle
      HIB             Haemophilus Influenza B
      HIC             Hybrid Integrated Circuit
      HIES            Primary Hyper-IgE Syndrome
      HIF             Higher Integrative Functions
      HIIS            Healthcare Integrated Information System
      HIMSS           Healthcare Information and Management Systems Society
      HIP             Humoral Immunocompetence Profile
      HIPC            Health Insurance Purchasing Cooperatives
      HIPH            High Institute of Public Health
      HIPPI           High Performance Parallel Interface
      HIR             Hierarchy
      HIS             Hospital Information System
      HISG            Human Immune Serum Globulin
      HISPP           Healthcare Informatics Standards Planning Panel
      HIT             Health Information Technologies
      HIT             Human Interface Technology
      HITC            Half-Inch Tape Cartridge
      HIV             Human Immunodeficiency Virus
      HIVID           Zalcitabine
      HLA             Histocompatibility Locus Antigen
      HLC             Heavy-Lifting Capability
      HLDLC           High-Level Data Link Control
      HLL             High-Level Language
      HLLAPI          High-Level Language Application Programming Interface
      HLP             Help
      HLP             Help File
      HLPC            High-Level Partner Changer
      HLQ             High-Level Qualifier
      HLS             Hue Luminance Saturation
      HLT             Halt
      HLT             Health Literature Services
      HLV             Heavy-Lift Vehicle
      HMA             High-Memory Area
      HMD             Head-Mounted Display
      HMD             Hyaline Membrane Disease
      HMIS            Health Management Information System
      HMM             Hidden Markov Modeling
      HMO             Health Maintenance Organization
      HMOS            High-Speed Metal-Oxide Semiconductor
      HMP             Hexose Monophosphate Pathway
      HMS             Hexose Monophosphate Shunt
      HMW             High Molecular Weight
      HN              Hospital Nurses
      HNP             Herniated Nucleus Pulposus
      hnRNA           Heterogenous Nuclear Ribonucleic Acid
      HOB             Head of Bed
      HOL             High-Order Language
      HOL             Higher Order Logic
      HOP             Hybrid Operating System
      HOTOL           Horizontal Take-Off and Landing Launch Vehicle
      HOTT            Hot Off The Tree
      HP              Hewlett-Packard Inc 
      HP              Horse-power
      HPC             High-Performance Computing
      HPC             Hypothetical Prescribed Cost
      HPCC            High-Performance Computing and Communications
      HPDS            High-Performance Data System
      HPF             High-Performance Fortran
      HPF             Highest Priority First
      HPFS            High-Performance File System
      HPG             High-Performance Graphics
      HPGPL           Hewlett-Packard Graphics Plotter Language
      HPIB            Hewlett-Packard Interface Bus
      HPLC            High-Performance Liquid Chromatography
      HPM             Harvard Project Manager
      HPN             Home Parenteral Nutrition
      HPNS            High Pressure Neurologic Syndrome
      HPO             High-Performance Option
      HPPI            High-Performance Parallel Interface
      HPS             Hardware Product Services
      HPS             High Performance Systems
      HPV             Human Papilloma Virus
      HQ              Headquarters
      HR              High-Resolution
      HRG             Healthcare Resource Groups
      HRG             High-Resolution-Graphics
      HRH             Human Resources for Health
      HRIG            Human Rabies Immune Globulin
      HRIS            Highway Research Information Service
      HRIS            Human Resource Information System
      HRL             Human Resources Laboratory
      HRLM            High Resolution Light Microscopy
      HRM             Human Resources Management
      HRMS            Human Resource Management System
      HRP             Human Reproduction Programme
      HRS             Hepatorenal Syndrome
      HRS             Human Resources
      HRSA            Health Resources and Services Administration
      HRT             Hormone Replacement Therapy
      HS              Handset
      HS              High Speed
      HSAC            High-Speed Analog Computer
      HSAM            Hierarchical Sequential Access Method
      HSC             Health Science Center
      HSC             Hierarchical Storage Controller
      HSC             High-Speed Channel
      HSDA            High-Speed Data Acquisition
      HSDB            Hazardous Substance Databank
      HSE             Herpes Simplex Encephalitis
      HSETC           Health Sciences Education and Training Command
      HSFS            High Sierra File System
      HSL             Hazardous Substance List
      HSL             Hue Saturation Lightness
      HSLC            Health Sciences Libraries Consortium
      HSLN            High-Speed Local Network
      HSM             Health Services and Mental Health
      HSM             Hierarchical Storage Management
      HSM             High-Speed Memory
      HSO             Hierarchical Sequential Organization
      HSP             High-Speed Photometer
      HSP             High-Speed Printer
      HSP             High-Speed Processor
      HSR             High-Speed Reader
      HSRP            Hot Standby Router Protocol
      HSRV            Human Spumavirus
      HSSDS           High-Speed Switched Digital Service
      HSSI            High-Speed Serial Interface
      HSSP            High-Speed Scientific Processor
      HST             High-Speed Technology
      HST             Host File
      HST             Hubble Space Telescope
      HST-SM          Hubble Space Telescope Servicing Machine
      HSTAT           Health Services-Technology Assessment Text
      HSV             Herpes Simplex Virus
      HSV             Hue Saturation Value
      HT              Horizontal Tabulation
      HTC             Homozygous Typing Cells
      HTCIA           High-Tech Crime Investigator's Association
      HTL             High-Threshold Logic
      HTLV            Human T-Lymphotropic Virus
      HTML            HyperText Markup Language
      HTN             Hypertension
      HTP             Handwriting Technology Package
      HTSC            Human Tonsil Stromal Cells
      HTTP            Hypertext Transfer Protocol
      HTX             Hypertext
      HU              High Usage
      HUD             Department of Housing and Urban Development
      HUD             Heads-Up Display
      HUSAT           Human Sciences and Advanced Technology
      HUTG            High Usage Trunk Group
      HV              High Voltage
      HVH             Herpes Virus Hominis
      HVIS            High Virus Isolates
      HVM             High Volume Manufacturing
      HVPS            High Voltage Power Supply
      HW              Hardware
      HWCI            Hardware Configuration Item
      HWM             High-Water Mark
      HYP             Hypertext
      HYP             Hyphenation
      Hz              Hertz
      I               Indicator
      I               Input
      I               Instruction
      I               Integer
      I               Inverter
      I/O             Input-Output
      I/O             Input/Output
      IA              Information Automation
      IA              Intelligent Access
      IA              Intelligent Applications
      IAB             Internet Activities Board
      IAB             Internet Architecture Board
      IABCP           Intra-Aortic Balloon Counter Pulsation
      IABP            Intra-Aortic Balloon Pump
      IAC             Information Access Company
      IAC             Interapplication Communication
      IACCI           International Association of Credit Card Investigators
      IAE             In Any Event
      IAE             Inflatable Antenna Experiment
      IAEA            International Atomic Energy Agency
      IAF             Inter-American Foundation
      IAG             Interactive Application Generator
      IAIMS           Integrated Academic Information Management Systems
      IAL             International Algebraic Language
      IAL             International Algorithmic Language
      IANA            Internet Assigned Numbers Authority
      IANAL           I Am Not A Lawyer
      IAP             Integrated Array Processor
      IAR             Initial Address Register
      IAR             Interim Assistance Reimbursement
      IAS             Immediate Access Storage
      IAS             Information Access System
      IAS             Institute for Advanced Study
      IAT             Immuno-Augmentive Therapy
      IAT             Institute for Academic Technology
      IAT             Institution of Advanced Technology
      IAT             Intra-Operative Autotransfusion
      IAW             In Accordance With
      IB              Instruction Buffer
      IBA             Independent Broadcast Authority
      IBC             Iron-Binding Capacity
      IBD             Inflammatory Bowel Disease
      IBJ             Internet Business Journal
      IBL             Immunoblastic Lymphoma
      IBM             International Business Machines
      IBN             Integrated Business Network
      IBQ             Illness Behavior Questionnaire
      IBS             Irritable Bowel Syndrome
      IBSE            Initial Blood Storage Experiment
      IBSS            Infrared Background Signature Survey
      IBU             Independent Business Unit
      IBW             Ideal Body Weight
      IBX             Integrated Business Exchange
      IC              Incoming Call
      IC              Independent Carrier
      IC              Inductance-Capacitance
      IC              Information Center
      IC              Information Clearinghouse
      IC              Input Circuit
      IC              Instruction Counter
      IC              Integrated Circuit
      IC              Interface Control
      IC              Interrupt Code
      ICA             Integrated Communications Adapter
      ICA             Intelligent Communications Adapter
      ICA             Intra-application Communications Area
      ICAI            Intelligent Computer-Assisted Instruction
      ICAM            Integrated Computer-Aided Manufacturing
      ICAO            International Civil Aviation Organization
      ICAS            Intel Communicating Applications Specifications
      ICASE           Institute for Computer Applications in Science and Engineering
      ICB             Image Capture Board
      ICBC            IMAX Cargo Bay Camera
      ICBW            I Could Be Wrong
      ICD             Immune-Complex Dissociated
      ICD             Implantable Cardioverter Defibrillator
      ICD             Interactive Call Distribution
      ICD             International Classification of Diseases
      ICDL            International Center for Distance Learning
      ICE             In-Circuit Emulator
      ICE             Input Checking Equipment
      ICE             Integrated Clinical Encounters
      ICE             International Cometary Explorer
      ICES            Integrated Civil Engineering System
      ICF             Integrated Catalog Facility
      ICF             Intracellular Fluid
      ICG             Institute for Global Communication
      ICG             Interactive Computer Graphics
      ICGEB           International Centre for Genetic Engineering and Biotechnology
      ICH             International Call Handling
      ICI             Internet Computer Index
      ICL             Idiopathic CD4+ T-Lymphocytopenia
      ICL             Incoming Line
      ICL             Input Command Language
      ICLID           Individual Calling Line ID
      ICLP            International Conference on Logic Programming
      ICM             Integrated Call Management
      ICMP            Internet Control Message Protocol
      ICMS            Information Center Management System
      ICN             Intensive Care Neonatal
      ICN             Interconnecting Network
      ICODP           International Conference on Open Distributed Processing
      ICP             Integrated Channel Processor
      ICP             Intracranial Pressure
      ICP             Inventory Control Points
      ICPC            International Classification of Primary Care
      ICPSR           Inter-University Consortium for Political and Social Research
      ICR             Intelligent Character Recognition
      ICS             Industrial Computing Society
      ICS             Information
      ICS             International Centre for Science
      ICS             Intuitive Command Structure
      ICSH            Interstitial Cell Stimulating Hormone
      ICST            Institute for Computer Sciences and
      ICSU            Integrated Channel Service Unit
      ICT             Indirect Coombs' Test
      ICT             Insulin Coma Therapy
      ICT             Interactive Consumer Terminal
      ICU             Instruction Control Unit
      ICU             Intensive Care Unit
      ICVT            Incoming Verification Trunk
      ID              Identification
      ID              Inner Diameter
      ID              Integrated Design
      IDA             Image Display and Analysis
      IDA             Integrated Digital Access
      IDA             Intelligent Disk Array
      IDA             Intelligent Drive Array
      IDA             Intercommunication Data Areas
      IDA             Interconnect Device Arrangement
      IDA             Iron Deficiency Anemia
      IDAPI           Integrated Database Application Programming Interface
      IDC             Information Distribution Companies
      IDC             Interactive Datacomm Configuration
      IDC             Interdigitating Cells
      IDCS            Instrumentation Data Collection System
      IDCS            Integrated Document Control System
      IDD             Integrated Data Dictionary
      IDD             International Direct Dial
      IDDD            International Direct Distance Dial
      IDDE            Integrated Development and Debugging Environment
      IDDM            Insulin Dependent Diabetes Mellitus
      IDDS            International Digital Data Service
      IDE             Integrated Development Environment
      IDE             Integrated Drive Electronics
      IDE             Intelligent Distributed Editor
      IDE             Interactive Design and Engineering
      IDEA            Indiana Department of Education
      IDEA            Internet Design Engineering and Analysis
      IDEALS          International Dimension in Education via Active Learning and Simulation
      IDF             Integrated Data File
      IDI             Improved Data Interchange
      IDI             Initial Domain Identifier
      IDI             Intelligent Dual Interface
      IDI             International Development Intern
      IDIV            Integer Divide
      IDIV            Integer Division
      IDL             Interactive Data Language
      IDL             Interface Description Language
      IDLC            Integrated Digital Loop Carrier
      IDM             Image Data Manager
      IDM             Infants of Diabetic Mothers
      IDM             Intelligent Database Machine
      IDMR            Inter-Domain Multicast Routing
      IDMS            Integrated Data Management System
      IDN             Integrated Digital Networks
      IDNX            Integrated Digital Network Exchange
      IDP             Industrial Data Processing
      IDP             Integrated Data-Processing
      IDP             Internet Datagram Protocol
      IDPS            Interactive Distributed Planning System
      IDRC            Improved Data Recording Capability
      IDRC            International Development Research Center
      IDRP            ISO Inter-Domain Routing Protocol
      IDRU            Intelligent Digital Recovery Unit
      IDS             Input Data Strobe
      IDS             Integrated Data Store
      IDS             Integrated Directory Services
      IDS             Internal Directory System
      IDSC            Information and Decision Support Center
      IDT             Interrupt Descriptor Table
      IDTN            Integrated Digital Transport Network
      IDU             Injecting Drug User
      IDU             Injection Drug Users
      IDVC            Integrated Data-Voice Channel
      IDX             Index
      IDX             Index File
      IE              Information Engineering
      IE              Information Expert
      I*EARN          International Education and Research Network
      IEC             Information Engineering Committee
      IEC             Inter-Exchange Carrier
      IEC             International Electrotechnical Commission
      IECM            Induced Environment Contamination Monitor
      IED             International Engineering Development
      IEEE            Institute of Electrical & Electronic Engineers
      IEEE            Institute of Electrical and Electronic
      IEF             Information Engineering Facility
      IEF             Isoelectric Focusing
      IEG             Internal Equipment Group
      IEHM            Institute of Environmental Health Monitoring
      IEM             Immune Electron Microscopy
      IEM             Inborn Errors of Metabolism
      IEN             Internet Engineering Notes
      IEN             Internet Experiment Note
      IEN             Internet Experiment Notebook
      IEO             Integrated Electronic File
      IEP             Immunoelectrophoresis
      IEP             Individualized Education Plan
      IES             Information Exchange System
      IES             Intelligent Environmental Sensor
      IESG            Internet Engineering Steering Group
      IETF            Internet Engineering Task Force
      IETM            Interactive Electronic Technical Manuals
      IETMDB          Interactive Electronic Technical Manuals Data Base
      IETS            Interim European Telecommunications Standards
      IF              Interactive Fiction
      IF              Intermediate Frequency
      IF              Interrupt Flag
      IFA             Indirect Fluorescent Antibody
      IFA             Integrated File Adapter
      IFAM            Inverted File Access Mechanism
      IFB             Invitation For Bid
      IFD             Image-File Directory
      IFF             Image File Format
      IFF             Interchange File Format
      IFG             Incoming Fax Gateway
      IFI             Intelligent Font Interface
      IFIP            International Federation for Information Processing
      IFLA            International Federation of Library Associations
      IFN             Interferon
      IFNS            International Ferret News Service
      IFOV            Instantaneous Field of View
      IFP             Interface Processor
      IFPS            Interactive Financial Planning System
      IFR             Internal Function Register
      IFRU            Interference Rejection Unit
      IFS             Installable File System
      IFS             Institute for Fusion Studies
      IFS             Interactive File Sharing
      IFS             Interactive Financial Sharing
      IFSP            Individualized Family Service Plan
      IFU             Integer Function Unit
      IGA             Integrated Graphics Array
      IGC             Institute for Global Change
      IGC             Institute for Global Communications
      IGC             Integrated Graphics Controller
      IGC             Intelligent Graphics Controller
      IGES            Initial Graphics Exchange Specification
      IGF             Intelligent Graphics Format
      IGMP            Internet Group Multicast Protocol
      IGP             Interior Gateway Protocol
      IGRP            Interior Gateway Routing Protocol
      IGS             Integrated Graphics System
      IGY             International Geophysical Year
      IH              Interrupt Handler
      IHD             Ischemic Heart Disease
      IHITTG          I Heard it Through the Grapevine
      IIA             Information Industry Association
      IIA             Institute of Internal Auditors
      IIAC            Integration and Analysis Center
      IIAS            Interactive Instructional Authoring System
      IICA            Inter-American Institute for Cooperation on Agriculture
      IIE             Institute of Industrial Engineers
      IIF             Indirect Immunofluorescence
      IIJ             Internet Initiative Japan
      IIL             Integrated Injection Logic
      IIN             Integrated Information Network
      IINREN          Interagency Interim National Research and Educational Council
      IIP             Intergovernmental Informatics Program
      IIPS            Interactive Instructional Presentation System
      IIIR            Integration of Internet Information Resources
      IIRG          International Information Retrieval Guild
      IIS             Interactive Instruction System
      IITA            Information Infrastructure Technology and Applications
      IITF            Information Infrastructure Task Force
      IKBS            Intelligent Knowledge-Based Systems
      IKE             IBM Kiosk for Education
      IL              Indirect Labor
      ILA             Inflammatory Liver Activity
      ILC             Instruction Length Code
      ILC             Intelligent Local-Area Network Controller
      ILF             Initial License Fee
      ILP             Instruction-Level Parallelism
      ILS             Instrument Landing System
      ILSA            International Law Students Association
      ILSP            Integrated Logistic Support Plan
      ILSW            Interrupt Level Status Word
      IM              Information Management
      IM              Instrumentation
      IM              Interface Module
      IMA             International Messaging Associates
      IMACS           Image Management Archiving and Communication System
      IMAP            Industry Marketing Assistance Program
      IMAP            Interactive Mail Access Protocol
      IMAS            Integrated Mass Announcement System
      IME             In My Estimation
      IMC             Image Motion Compensation
      IMCO            In My Considered Opinion
      IMD             Immediate
      IMD             Inherited Metabolic Disorders
      IMD             Interactive Map Definition
      IMDS            Image Data Stream
      IMF             Interactive Mainframe Facility
      IMF             International Monetary Fund
      IMG             Image
      IMG             International Medical Graduate
      IMHO            In My Humble Opinion
      IMI             Inner Magnetosphere Imager
      IMIA            International Medical Informatics Association
      IMIS            Integrated Management Information System
      IML             Initial Microprogram Load
      IML             International Microgravity Laboratory
      IMM             Idle Material Management
      IMM             Intelligent Memory Manager
      IMNET           International Marketing Network
      IMNSHO          In My Not So Humble Opinion
      IMO             In My Opinion
      IMO             Information Market Observatory
      IMOD            Industrial Modernization
      IMP             Impressions
      IMP             Instant Math Preprints
      IMP             Interface Message Processor
      IMPACT          Information Market Policy Actions Service
      IMPL            Initial Microprogram Load
      IMPRS           Information Management Process Reporting System
      IMR             Internet Monthly Report
      IMS             Information Management System
      IMS             Instructional Management System
      IMS             Integrated Management System
      IMS             Inventory Management System
      IMS/VS          Information Management System/Virtual Storage
      IMT             Information Management Technology
      IMTEC           Information Management and Technology Division
      IMTS            Improved Mobile Telephone Service
      IMUL            Integer Multiplication
      IN              Input
      IN              Input Byte from I/O Port
      IN              Intelligent Network
      INAP            Intelligent Network Access Point
      INASP           International Network for Availability of Scientific Publications
      INC             Increment
      INC             Increment Operand
      INCAP           Institute of Nutrition of Central American and Panama
      INCL            Inclination
      IND             Indicator
      IND             Investigational New Drug
      INF             Information
      INF             Information File
      INF             Intravenous Nutritional Fluid
      INFAN           International Food and Nutrition Database
      INFO            Information
      INFO            Information Network and File Organization
      INFONET         Information Network
      INGRES          Interactive Graphics Retrieval System
      INH             Isoniazid
      INH             Isonicotinic Acid Hydrazide
      INI             Initialization File
      INI             Initialize
      INIMA           Institute of Informatics and Applied Mathematics
      INIT            Initialize
      INM             Integrated Network Management
      INMARSAT        International Maritime Satellite
      INN             Inter-Node Network
      INOC            Internet Network Operations Center
      INP             Input
      INQ             Inquiry
      INR             Information-Request
      INR             International Normalized Ratio
      INS             Immigration and Naturalization Service
      INS             Inertial Navigation System
      INS             Information Network Services
      INS             Information Network System
      INS             Inhibitory Sequences
      INS             Input String
      INS             Integrated Network Services
      INS             International Navigation System
      INSAT           Indian Satellite
      INST            Instruction
      INT             Initial
      INT             Integer
      INT             Interrupt
      INT             Software Interrupt
      INTA            Interrupt Acknowledge
      INTCON          International Connection
      INTELSAT        International Telecommunications Satellite Consortium
      InterNIC        Internet Network Information Center
      INTO            Software Interrupt
      INTT            Incoming No Test Trunks
      INV             Inventory
      INWATS          Inward Wide Area Telecommunications Service
      INX             Index
      IO              Independent Option or Input/Output
      IOA             Islands of Automation
      IOB             Input-Output Buffer
      IOC             Initial Operating Capability
      IOC             Input-Output Channel
      IOC             Input-Output Controller
      IOC             Integrated Optical Circuit
      IOC             International Operating Center
      IOCC            Input-Output Control Center
      IOCC            Input-Output Control Command
      IOCC            International Overseas Completion Center
      IOCM            Interim Operational Contamination Monitor
      IOCS            Input-Output Control Services
      IOCS            Input-Output Control System
      IOCTL           Input-Output Control
      IOD             Identified Outward Dialing
      IOD             Input-Output Device
      IOM             Institute of Medicine
      IOO             Input-Output Operation
      IOP             Input-Output Processor
      IOP             Intraocular Pressure
      IOPI            International Organization for Plant Information
      IOPS            Input-Output Processing System
      IOR             Index of Refraction
      IOR             Input-Output Register
      IOR             Intra-Operative Radiotherapy
      IOREQ           Input-Output Request
      IORL            Input-Output Requirements Language
      IOS             Integrated Office System
      IOS             Internewtwork Operating System
      IOS             Inter-Optical Systems
      IOT             Image-Output Terminals
      IOT             Input-Output Transfer
      IOT             Inter-Office Trunk
      IOT             Intraocular Tension
      IOTA            Information Overload Testing Apparatus
      IOTA            Infrared-Optical Telescope Array
      IOU             Immediate Operation Use
      IOW             In Other Words
      IP              Image Processing
      IP              Image Processor
      IP              Information Processing
      IP              Information Provider
      IP              Instruction Pointer
      IP              Instruction Processor
      IP              Integer Program
      IP              Intellectual Property
      IP              Intermediate Point
      IP              Internal Packet
      IP              Internet Protocol
      IP              Item Processor
      IPA             Independent Practice Associations
      IPA             Information Processing Architecture
      IPA             Intermediate Power Amplifier
      IPAE            Internet Protocol Address Encapsulation
      IPATM           IP Over Asynchronous Transfer Mode
      IPB             Illustrated Parts Breakdown
      IPB             Intermediate Parts Breakdown
      IPC             Industrial Process Control
      IPC             Industrial Programmable Control
      IPC             Information Processing Center
      IPC             Integrated Personal Computer
      IPC             Inter-Process Communication
      IPC             International Program Committee
      IPC             Internet Packet Controller
      IPC             Interprocess Communications
      IPC             Inventory Process Control
      IPCC            Inter-governmental Panel on Climate Change
      IPCS            Interactive Problem Control System
      IPCS            Interactive Programming Control System
      IPCT            Integrated Program of Data and Text
      IPCT            Interpersonal Computing and Technology
      IPD             Insertion Phase Delay
      IPD             Inter-Pupillary Distance
      IPDP            Industrial Peripheral Data Processing
      IPDS            Intelligent Printer Data Stream
      IPDU            Internet Protocol Data Unit
      IPE             Integrated Programming Environment
      IPF             Idiopathic Pulmonary Fibrosis
      IPF             Information Presentation Facility
      IPF             Interactive Productivity Facility
      IPG             Image Processing Group
      IPG             Impedance Plethysmography
      IPH             Immediate Postpartum Hemorrhage
      IPI             Intelligent Peripheral Interface
      IPI             Intelligent Printer Interface
      IPI             Interpotential Interval
      IPL             Information Program Loader
      IPL             Information Programming Language
      IPL             Initial Program Load
      IPLS            InterLATA Private Line Services
       IPM             Identical Phase Modulation
      IPM             Impulses-Per-Minute
      IPM             Interphotoreceptor Matrix
      IPM             Interruptions-Per-Minute
      IPMO            Industry Program Management Office
      IPMP            Investigation into Polymer Membranes Processing
      IPN             Information Processing Network
      IPN             Inspection Progress Notifications
      IPN             Instant Private Network
      IPN             International Polio Network
      IPO             Installation Productivity Option
      IPO             International Procurement Office
      IPOL            Information Policies
      IPOT            Inductive Potential Divider
      IPPB            Intermittent Positive Pressure Breathing
      IPR             In-Process Review
      IPS             Inches-Per-Second
      IPS             Inertial Pointing System
      IPS             Information Processing Standards
      IPS             Information Processing System
      IPS             Intelligent Process System
      IPS             Internal Power Supply
      IPSE            Integrated Project-Support Environment
      IPSG            Internal Product Strategies Group
      IPSJ            Information Processing Society of Japan
      IPSP            Internet Protocol Security Protocol
      IPT             Inventory Program Team
      IPU             Internal Processing Unit
      IPX             Internet Packet Exchange
      IPX             Internetwork Packet Exchange
      IQF             Interactive Query Facility
      IQL             Interactive Query Language
      IQSY            International Quiet Sun Year
      IR              Index Register
      IR              Information Request
      IR              Information Resource
      IR              Information Retrieval
      IR              Infrared
      IR              Infrared Spectrum
      IR              Instruction Register
      IR              Internet Registry
      IR              Internetwork Router
      IRAS            Infra Red Astronomy Satellite
      IRB             Independent Review Board
      IRB             Institutional Review Board
      IRC             Internal Review Committee
      IRC             International Record Carrier
      IRC             Internet Relay Chat
      IRD             International Resource Development
      IRDB            Information Retrieval Databank
      IRDM            Insulin-Resistant Diabetes Mellitus
      IRDS            Infant Respiratory Distress Syndrome
      IRDS            Information Resource Dictionary Standard
      IRET            Interrupt Return
      IRF             Immunologic Research Foundation
      IRG             Inter-Record Gap
      IRI             Immunoreactive Insulin
      IR-IE           Infrared Imaging Equipment
      IRAS            Infrared Astronomical Satellite
      IRCFE           Infrared Communications Flight Experiment
      IRIS            Incorporated Research Institutions for Seismology
      IRIS            Institute for Robotics and Intelligent Systems
      IRIS            Integrated Risk Information System
      IRIS            Italian Research Interim Stage
      IRL             Interactive Reader Language
      IRM             Information Resources Management
      IRMO            Information Resources Management Office
      IRMS            Information Resources Management Service
      IRN             Intermediate Routing Node
      IROR            Internal Rate of Return
      IRP             Initial Receiving Point
      IRPS            Image Retrieval and Processing System
      IRQ             Interrupt Request
      IRQ             Interrupt Request Signal
      IRR             Internal Rate of Return
      IRS             Inertial Reference System
      IRS             Information Retrieval System
      IRS             Internal Revenue Service
      IRSG            Internet Research Steering Group
      IRSS            Institute for Research in Social Science
      IRT             Immunoreactive Trypsinogin
      IRT             Index Return Character
      IRT             Integrated Rendezvous Radar Target
      IRTF            Internet Research Task Force
      IRVC            Institute for Research on Virtual Culture
      IRX             Information Retrieval Experiment
      IS              Indexed Sequential
      IS              Information Separator
      IS              Information Systems
      IS              Infrasound
      IS              Intermediate System
      IS              International Standard
      IS              Interrupt Set
      IS              Interval Signal
      ISA             Industry Standard Architecture
      ISA             Interrupt Storage Area
      ISA             Intrinsic Sympathomimetic Activity
      ISAAC           Information System for Advanced Academic Computing
      ISAIAH          Israeli Space Agency Investigation About Hornets
      ISAL            Investigation of STS Atmospheric Luminosities
      ISAM            Indexed Sequential-Access Method
      ISAM            Integrated Switching and Multiplexing
      ISAS            Institute of Space and Astronautical Science
      ISAST           International Society for the Arts
      ISBN            International Standard Book Number
      ISBS            Information Systems Business Segment
      ISC             Information Services Center
      ISC             Instruction Set Computer
      ISC             Integrated Storage Control
      ISC             Inter-Systems Coupling
      ISC             International Switching Center
      ISDN            Integrated Services Digital Network
      ISDOS           Information System Design and Optimization System
      ISDT            Integrated Systems Development Tool
      ISE             Ion-Selective Electrode
      ISEA            International Society for Exposure Analysis
      ISEE            International Society for Environmental Epidemiology
      ISEE            International Sun Earth Explorer
      ISF             Industrial Space Facility
      ISF             Information Security Foundation
      ISF             Information Systems Factory
      ISFET           Ion-Sensitive Field-Effect Transistor
      ISFUG           Integrated Software Federal User Group
      ISG             Immune Serum Globulin
      ISH             In-Situ Hybridization
      ISI             Information Sciences Institute
      ISI             Internally Specified Index
      ISI             International Sensitivity Index
      ISI             Interstimulus Interval
      ISIS            Information Systems Investment Strategies
      ISIS            Integrated Student Information System
      ISIS            Integrated Systems and Information Services
      ISK             Insert Storage Key
      ISL             Information Systems Language
      ISL             Instructional Systems Language
      ISL             Interactive Simulation Language
      ISL             Interactive System Language
      ISLM            Integrated Services Line Module
      ISLU            Integrated Services Line Unit
      ISM             Industrial Scientific and Medical Band
      ISM             Installed Systems Marketing
      ISM             Integrated Service Management
      ISM             Information Sources Map
      ISN             Information Systems Network
      ISN             Integrated Systems Network
      ISN             Internet School Networking
      ISO             Individual System Operation
      ISO             Infrared Space Observatory
      ISO             International Standards Organization
      ISOC            Internet Society
      ISODE           International Standards Organization Development Environment
      ISOO            Information Security Oversight Office
      ISP             Information Strategy Planning
      ISP             Information Systems Planning
      ISP             Instruction Set Processor
      ISPF            Interactive System Productivity Facility
      ISPF            Interactive Systems Programming Facility
      ISPL            Instruction Set Processor Language
      ISPN            International Standard Program Number
      ISPS            Information System Production Systems
      ISPS            Instruction Set Processor Specifications
      ISR             Information and Systems Research
      ISR             Information Storage and Retrieval
      ISR             Intersecting Storage Rings
      ISRG            Independent Space Research Group
      ISS             Integrated Switching System
      ISSN            Integrated Special Services Network
      ISSN            International Standard Serial Number
      ISSS            International Society for the Systems Sciences
      IST             Initial System Test
      IST             Insulin Shock Therapy
      IST             International Security Technology
      ISTE            International Society for Technology in Education
      ISU             Information Services and Utilities
      ISU             Integrated Service Unit
      ISU             International System of Units
      ISUP            Integrated Services User Part
      ISV             Independent Software Vendor
      ISY             International Space Year
      IT              Industrial Technology
      IT              Information Technology
      IT              Innovative Technology
      IT              Intelligent Terminal
      IT              Internal Translator
      IT              Intrathecal
      IT              Item Transfer
      ITB             Information Technology Branch
      ITB             Intermediate Text Block
      ITB             Iterative Tabular Bayes' Algorithm
      ITC             Image Transfer Controller
      ITC             Inter-Task Communication
      ITDM            Intelligent Time-Division Multiplexer
      ITE             Integrated Terminal Equipment
      ITESM           Instituto Tecnologico y de Estudios Superiores de Monterrey
      ITM             Information Technology Management
      ITMS            Intelligent Text Management System
      ITP             Individual Training Plan
      ITP             Interactive Terminal Protocol
      ITP             Interpersonal Psychotherapy
      ITP             Interrupt Pending
      ITR             Inverted Terminal Repeat
      ITS             Incompatible Time-Sharing System
      ITS             Information Technology Services
      ITS             Institute of Telecommunication Science
      ITS             Integrated Trading System
      ITS             Intelligent Tutoring Systems
      ITS             Invitation To Send
      ITSEC           Information Technology Security Evaluation Criteria
      ITSO            Incoming Trunk Service Observation
      ITT             Insulin Tolerance Test
      ITT             International Telephone and Telegraph
      ITU             International Telecommunication Union
      ITU             International Telephone Union
      ITV             Interactive Television
      IuBIO           Indiana University Archive for Molecular and General Biology
      IUC             Idiopathic Ulcerative Colitis
      IUCD            Intrauterine Contraceptive Device
      IUD             Intrauterine Device
      IUE             International Ultraviolet Explorer
      IUGR            Intrauterine Growth Retardation
      IUP             Installed User Program
      IUP             Intrauterine Pregnancy
      IUS             Inertial Upper Stage
      IV              Inverter
      IVC             Inferior Vena Cava
      IVD             Integrated-Voice-Data
      IVDT            Integrated Voice-Data Terminal
      IVE             Immersive Virtual Environment
      IVF             In Vitro Fertilization
      IVHS            Intelligent Vehicle-Highway Systems
      IVIG            Intravenous Immune Globulin
      IVIS            Interactive Video Information System
      IVIS            Interactive Video Interface System
      IVP             Installation Verification Program
      IVR             Interactive-Voice-Response
      IVS             Interactive-Videodisk-System
      IVT             Interrupt Vector Table
      IVTS            International Video Teleconferencing Service
      IW              Index Word
      IWSDB           Integrated Weapon System Data Base
      IX              Index
      IX              Interactive Executive
      IXC             Inter-Exchange Carrier
      IXNPS           Image Xpert Network Print Server
      J/S             Justified
      JA              Jump Address
      JA              Jump-If-Above
      JACM            Journal of the Association for Computing Machinery
      JAD             Joint Application Design
      JAD             Joint Application Development
      JAE             Jump-If-Above-Or-Equal
      JAG             Judge Advocate General Navy
      JAM             Just-A-Minute
      JAMA            Journal of The American Medical Association
      JANET           Joint Academic Network
      JAWS            Joint Analytical Warfare System
      JB              Jump-If-Below
      JBE             Jump-If-Below-Or-Equal
      JC              Jump-If-Carry-Set
      JCAE            Joint Committee on Atomic Energy
      JCAH            Joint Commission For Accreditation Of Hospitals
      JCL             Job Control Language
      JCP             Job Control Procedure
      JCSAT           Japan Communications Satellite
      JCT             Journal Control Table
      JCTN            Junction
      JCXZ            Jump-If-CX-Register-Zero
      JDC             Job Description Card
      JDS             Job Development System
      JE              Jump-If-Equal
      JEC             Job Evaluation Classification
      JEP             Job Entry Program
      JES             Job Entry Subsystem
      JES             Job Entry System
      JET             Joint European Torus
      JFCB            Job File Control Block
      JFCC            Japan Federation for Culture Collections
      JFD             JEM Flight Demonstration
      JFIF            JPEG File Interchange Format
      JG              Job Guides
      JG              Jump-If-Greater
      JGE             Jump-If-Greater-Or-Equal
      JGN             Junction Gate Number
      JHP             Jupiter Host Processor
      JIB             Job Information Block
      JIC             Just-In-Case
      JIM             Job Information Memorandum
      JIP             Joint Input Processing
      JIPS            Janet IP Service
      JIT             Just-In-Time
      JL              Jump-If-Less
      JLE             Japanese Language Environment
      JLE             Jump-If-Less-Than-Or-Equal
      JMP             Jump
      JNA             Jump-If-Not-Above
      JNAE            Jump-If-Not-Above-Or-Equal
      JNB             Jump-If-Not-Below
      JNBE            Jump-If-Not-Below-Or-Equal
      JNC             Joint National Commission
      JNC             Jump-If-No-Carry
      JNE             Jump-If-Not-Equal
      JNF             Job Networking Facility
      JNG             Jump-If-Not-Greater
      JNGE            Jump-If-Not-Greater-Or-Equal
      JNK             Junk File
      JNL             Jump-If-Not-Less-Than
      JNLE            Jump-If-Not-Less-Than-Or-Equal
      JNO             Jump-If-No-Overflow
      JNP             Jump-If-No-Parity
      JNS             Jump-If-No-Sign
      JNT             Joint Network Team
      JNWPS           Joint Nuclear Weapons Publication System
      JNZ             Jump-If-Not-Zero
      JO              Job Order
      JOBCAT          Job Catalog
      JOC             Joint Operations Center
      JOD             Journal of Development
      JODM            Juvenile Onset Diabetes Mellitus
      JPEG            Joint Photographic Experts Group
      JPL             Jet Propulsion Laboratory
      JPO             Jump-if-Parity Odd
      JPW             Job Processing Word
      JRA             Juvenile Rheumatoid Arthritis
      JRP             Joint Requirements Planning
      JS              Jump-If-Sign
      JSC             Johnson Space Center
      JSN             Junction Switch Number
      JST             Japan Standard Time
      JT              Job Table
      JTEDS           Joint Type Electronics Designation System
      JTF             Joint Task Force
      JTM             Job Transfer and Manipulation
      JUG             Joint Users Group
      JUSTIS          Joint Uniformed Services Technical Information System
      JZ              Jump-If-Zero
      K               Kilo
      K               Kilobytes
      K&R             Kernighan and Ritchie
      KAK             Key-Auto-Key
      KAP             Kerberos Authentication Protocol
      KAPSE           Kernel Ada Programming Support Environment
      KAU             Keystation Adapter Unit
      KB              Keyboard
      KB              Kilobyte
      KB/SEC          Kilobytes/Per Second
      KBMS            Knowledge Base Management System
      KBPS            Kilobits-Per-Second
      KBS             Kilobyte-Per-Second
      KBS             Knowledge-Based System
      KCC             Keyboard Common Contact
      KCF             Key Clinical Findings
      KCS             Thousand Characters-Per-Second
      KD              Knocked-Down
      KDC             Key Distribution Center
      KDCI            Key Display Call Indicator
      KDD             Knowledge Discovery in Databases
      KDR             Keyboard Data Recorder
      KDS             Key Display Station
      KDS             Keyboard Display Station
      KDT             Key Definition Table
      KE              Knowledge Engineering
      KEE             Knowledge Engineering Environment
      KEV             Thousands of Electron Volts
      KIF             Key Index File
      KIPS            Kilo Instructions-Per-Second
      KIS             Knowbot Information Service
      KL              Key Length
      KM              Kanamycin
      KMS             Keysort Multiple Sectors
      KOR             Keep Open Rate
      KOR             Knowledge of Results
      KP              Key Pulse
      KPC             Keyboard Priority Controller
      KPO             Key-Punch Operator
      KPS             Keystrokes-Per-Second
      Kr              Krypton
      KRS             Knowledge-Retrieval System
      KS              Keystrokes
      KSAM            Keyed Sequential Access Method
      KSC             Kennedy Space Center
      KSDS            Key Sequence Data Set
      KSL             Knowledge System Laboratory
      KSOS            Kernalized Secure Operating System
      KSR             Keyboard Send-Receive
      KSS             Keystrokes-Per-Second
      KST             Known Segment Table
      KSU             Key Service Unit
      KSU             Key System Unit
      KTS             Key Telephone System
      KTU             Key Telephone Unit
      KUB             Kidney Ureter Bladder Abdominal Xray
      KVO             Keep Vein Open
      KWIC            Key-Word-In-Context
      KWOC            Key-Word-Out-of-Context
      L               Label
      L               Level
      L               Line
      L               Load
      L/MF            Low And Medium Frequency
      LAB             Legal Advisory Board
      LAB             Long-Acting Barbiturates
      LAC             Load Accumulator
      LAC             Loop Assignment Center
      LADB            Latin America Database
      LADS            Local Area Data Service
      LADT            Local Access Data Transport
      LADT            Local Area Data Transport
      LAGEOS          Laser Geodynamics Satellite
      LAHF            Load Flags Into AH
      LAII            Land-Atmosphere-Ice Interactions
      LAIS            Local Automatic Intercept System
      LAMA            Local Automatic Message Accounting
      LAN             Local Area Network
      LANCE           Local Area Network Controller for Ethernet
      LANL            Los Alamos National Laboratory
      LANL            Los Alamos Nuclear Laboratories
      LAP             Link Access Procedure
      LAP             Link Access Protocol
      LAP             Lower Abdominal Pain
      LAPB            Link Access Procedure Balanced
      LAPB            Link Access Protocol Balanced
      LAPD            Link Access Procedure Direct
      LAPM            Link Access Procedure for Modems
      LAPS            LAN Adapter Protocol Support
      LAR             Local Acquisition Radar
      LARC            Langley Research Center
      LASS            Local Area Signaling Service
      LASS            Local Area Switching Service
      LAST            Local Area System Transport
      LAT             Local Apparent Time
      LAT             Local Area Transport
      LATA            Local Access Transport Area
      LATS            Long Acting Thyroid Stimulating Hormone
      LAV             Lymphadenopathy-Associated Virus
      LAVC            Local Area Vax Cluster
      LAWN            Local Area Wireless Network
      LAX             Los Angeles International Airport
      LBL             Label
      LBL             Lawrence Berkeley Laboratory
      LBM             Lean Body Mass
      LBP             Low Back Pain
      LBR             Librarian
      LBR             Library File
      LBS             Load Balance System
      LBW             Low Birth Weight
      LC              Langerhans Cells
      LCA             Left Coronary Artery
      LCA             Life Cycle Analyses
      LCA             Logic Cell Array
      LCD             Liquid-Crystal Display
      LCD             Lowest-Common-Denominator
      LCDN            Last-Called Directory Number
      LCE             Limited Career Extension
      LCIS            Lobular Carcinoma In Situ
      LCM             Least Common Multiple
      LCM             Life-Cycle Management
      LCME            Liaison Committee on Medical Education
      LCN             Logical Channel
      LCN             Logical Channel Number
      LCP             Life-Cycle Plan
      LCP             Link-Control Protocol
      LCR             Least Cost Routing
      LCR             Ligase Chain Reaction
      LCR             Locus Control Region
      LCR             Long Control Region
      LCS             Laboratory for Computer Science
      LCS             Life Care Services
      LCS             Lotus Communications Server
      LCSE            Line Card Service and Equipment
      LCU             Last Cluster Used
      LD              Long Distance
      LDA             Logical Device Address
      LDAP            Lightweight Directory Access Protocol
      LDB             Logical Database
      LDC             Less-Developed Country
      LDC             Logical Device Coordinates
      LDC             Long Distance Carrier
      LDC             Lotus Development Corporation
      LDCE            Limited Duration Space Environment
      LDEF            Long Duration Exposure Facility
      LDL             Low-Density Lipoprotein
      LDLC            Low Density Lipoprotein Cholesterol
      LDM             Limited-Distance Modem
      LDMTS           Long Distance Message Telecommunications Service
      LDP             Laboratory Data Products
      LDS             Load Pointer Using DS
      LDS             Local Digital Switch
      LDS             Logical Data Structure
      LDT             Local Descriptor Table
      LE              Data Link Escape
      LE              Less-Or-Equal
      LE              Less-Than-Or-Equal-To
      LE              Local Exchange
      LE              Low Energy
      LEA             Load Effective Address
      LEA             Local Education Authority
      LEAP            League for Engineering Automation Productivity
      LEAP            Low-Power Enhanced-AT Portable
      LEBC            Low-End Business Center
      LEC             Local Exchange Carrier
      LED             Light-Emitting Diode
      LEETAC          Law Enforcement Electronic Technology Assistance Committee
      LEM             Language Extension Module
      LEN             Low-Entry Networking
      LEO             Low Earth Orbit
      LERN            Legal Research Network
      LES             Load Pointer Using ES
      LES             Lower Esophageal Sphincter
      LESS            Lateral Electrical Surface Stimulation
      LET             Letter File
      LET             Linear Energy Transfer
      LEU             Lightly Enriched Uranium
      LF              Limited-Field Irradiation
      LF              Line Finder
      LF              Line-Feed
      LF              Low-Frequency
      LF              Low-Frequency-Band
      LFC             Large Format Camera
      LFI             Last File Indicator
      LFS             Load Pointer Using FS
      LFS             Loopback File System
      LFSA            List of Frequently Seen Acronyms
      LFT             Liver Function Test
      LGA             Large For Gestational Age
      LGS             Load Pointer Using GS
      LHV             Left Ventricular Hypertrophy
      LI              Labeling Index
      LI              Length Indicator
      LI              Leukotactic Index
      LIB             Function Library
      LIB             Library
      LIB             Library File
      LIC             Library Information Center
      LIDC            Low-Intensity Direct Current
      LIED            Linkage Editor
      LIEP            Large Internet Exchange Packet
      LIF             Leukocyte Inhibition Factor
      LIFO            Last-In First-Out
      LII             Legal Information Institute
      LIM             Lotus/Intel/Microsoft Expanded Memory Specification
      LIMS            Library Information Management System
      LINCC           Library Information Network for Community Colleges
      LINSIC          Labrador Institute of Northern Studies Info Center
      LIPS            Logical Interferences Per Second
      LIS             Laboratory Information System
      LISA            Large Installation System Administration
      LISP            List Processing Language
      LITA            Library and Information Technology Association
      LITE            Lidar In-Space Technology Experiment
      LL              Logical Link
      LL              Low-Level
      LLC             Logical Link Control
      LLC2            Logical Link Control 2
      LLL             Latitude/Longitude Locator
      LLN             Line-Link Network
      LLNL            Lawrence Livermore National Laboratory
      LLP             Link Layer Protocol
      LLPC            Low-Level Partner Changers
      LLRW            Low-Level Radioactive Waste
      LLS             Laser Light Scatter
      LM              LAN Manager
      LM              Light Microscopy
      LM              Long Module
      LMC             Large Magellanic Cloud
      LMD             Local Medical Doctor
      LMF             Low Magnetic Field
      LMI             Local Management Interface
      LMI             Local Memory Interconnect
      LMMS            Local Message Metering System
      LMOS            Loop Maintenence Operating System
      LMP             Last Menstrual Period
      LMSW            Load Machine Status Word
      LN              Line
      LN              Logarithm
      LN              Lymph Node
      LNA             Low-Noise Amplifier
      LNG             Liquified Natural Gas
      LNMP            Last Normal Menstrual Period
      LOC             Level of Consciousness
      LOC             Library of Congress
      LOC             Lines of Code
      LOC             Local Operating Company
      LOC             Location
      LOC             Loss of Consciousness
      LOCIS           Library of Congress Information System
      LODS            Load String
      LODSB           Load String Byte
      LODSW           Load String Word
      LOE             Level of Effort
      LOF             Loss-of-Frame
      LOFT            Launch Operations Flight Test
      LOG             Logarithm
      LOL             Laughing Out Loud
      LOM             Limitation-Of-Motion
      LOOP            Lisp Object-Oriented Programming
      LOOP            Loop-On-Condition
      LOOPE           Loop-While-Equal
      LOOPNE          Loop-While-Not-Equal
      LOOPNZ          Loop-While-Not-Zero
      LOOPS           Lisp Object-Oriented Programming System
      LOOPZ           Loop-While-Zero
      LOP             Loss-of-Power
      LOPLAS          Letters on Programming Languages and Systems
      LOS             Length-of-Stay
      LOS             Line-of-Sight
      LOUIS           Louisiana Online University Information Systems
      LP              Light Pen
      LP              Linear Programming
      LP              Liquid Propellant
      LP              Low-Pressure
      LPCDF           Low Profile Combined Distributing Frame
      LPD             Line Printer Daemon
      LPDA            Link Problem Determination Aid
      LPF             League for Programming Freedom
      LPF             Low-Power-Field
      LPG             Low-Pressure Gas
      LPI             Lines-Per-Inch
      LPI             Lunar and Planetary Institute
      LPL             Lipoprotein Lipase
      LPL             Lotus Programming Language
      LPM             Lines-Per-Minute
      LPN             Licensed Practical Nurse
      LPN             Logical Page Number
      LPP             Licensed Program Products
      LPT             Line Printer
      LPT1            Line Printer Port 1
      LPT2            Line Printer Port 2
      LPT3            Line Printer Port 3
      LQ              Letter-Quality
      LR              Likelihood-Ratio
      LR              Logical Record
      LRAP            Long Route Analysis Program
      LRB             Liquid Rocket Booster
      LRC             Learning Resource Center
      LRC             Longitudinal Redundancy Character
      LRD             Living Related Donor
      LRES            Long-Range Evaluation System
      LRI             Lower Respiratory Illness
      LRM             Language Reference Manual
      LRN             Local Reference Number
      LRP             Long Range Plan
      LRS             Language Resource
      LRS             Language Resource File
      LRS             Line-Repeater Station
      LRSP            Long-Range System Plan
      LRU             Least-Recently-Used
      LS              LAN Server
      LS/LC           Line Stabilizer/Line Conditioner
      LSA             Line-Sharing-Adapter
      LSA             Logistics Support Analysis
      LSAP            Long Service Access Point
      LSAPI           License Services Application Program Interface
      LSAR            Logistics Support Analysis Record
      LSB             Least-Significant-Bit
      LSC             Least-Significant-Character
      LSD             Least-Significant-Digit
      LSD             Lysergic Acid Diethylamide
      LSE             Language Sensitive Editor
      LSI             Large-Scale-Integration
      LSM             Linux Software Map
      LSN             Life Science Network
      LSP             Linked Systems Project
      LSS             Life-Support System
      LSS             Loop-Switching System
      LST             List
      LST             List File
      LT              Less Than
      LT              Line Termination
      LT              Local Talk
      LT              Low Tension
      LT              Lymphoid Tissue
      LTA             Less-Than-Adequate
      LTBMC           Long-Term Bone Marrow Cultures
      LTC             Local Test Cabinet
      LTC             Long Term Care
      LTD             Local Test Desk
      LTER            Long-Term Ecological Research Project
      LTF             Line Trunk Frame
      LTF             Lymphocyte Transforming Factor
      LTG             Line Trunk Group
      LTM             Long-Term Memory
      LTMC            Lymphoid Tissure Mononuclear Cells
      LTP             Long-Term Potentiation
      LTR             Letter
      LTR             Long-Terminal-Repeat
      LTS             Long-Term Survivors
      LTU             Line Trunk Unit
      LU              Logical Unit
      LUG             Local Users Group
      LUT             Look-Up Table
      LV              Low Voltage
      LVH             Left Ventricular Hypertrophy
      LVIS            Low-Virus Isolates
      LWM             Low-Water Mark
      LWOP            Leave-Without-Pay
      LZW             Lempel-Ziv-Walsh Compression Technique
      m               Meter
      M               Mix
      M/M             Macrophages/Monocytes
      MA              Maintenance Administrator
      MA              Matrix Antigen
      MA              Medical Assistance
      mA              Milliampere
      MA              Multiple Access
      MAB             Monoclonal Antibodies
      MAC             Macintosh Computer
      MAC             MacPaint File
      MAC             Macro File
      MAC             Mandatory Access Control
      MAC             Maximum Allowable Concentration
      MAC             Media Access Control
      MAC             Multi-Access Computing
      MAC             Mycobacterium Avium Complex
      MACHO           Massive Compact Halo Objects
      MACS            Magnetic Immunoaffinity Method
      MACS            Multicenter AIDS Cohort Study
      MACSAT          Multi-Access Communications Satellite
      MADAP           Maryland Drug Assistance Program
      MADN            Multiple Access Directory Number
      MAF             Macrophage Activating Factor
      MAGSAT          Magnetic Field Satellite
      MAI             Mail File
      MAI             Mycobacterium Avium-Intracellulare
      MAIC            Mycobacterium Avium-Intracellulare Complex
      MALT            Membrane-Associated Lymphoid Tissue
      MAN             Metropolitan Area Network
      MANOVA          Multivariate Analysis of Variance
      MAO             Monoamine Oxidase
      MAOI            Monoamine Oxidase Inhibitor
      MAP             Linker Map File
      MAP             Management Assessment Program
      MAP             Manufacturing Automation Protocol
      MAP             Marketing Assistance Program
      MAP             Memory Allocation Map
      MAPE            Microcomputers and Primary Education
      MAPI            Messaging Applications Programming Interface
      MAR             Memory Address Register
      MAR             Microprogram Address Register
      MAR             Middeck Accommodations Rack
      MARBI           Machine Readable Bibliographic Record Committee
      MARC            Machine Readable Catalogueing
      MARS            Memory Address Register Storage
      MARS            Multi-Access Airline Reservation System
      MARS            Multi-User Archival and Retrieval System
      MARTEC          Martin Thin-Film Electronic Circuit
      MAS             Mail Archive Server
      MAS             Management Advisory Services
      MAS             Mass Announcement System
      MAS             Meconium Aspiration Syndrome
      MAS             Movement Alarm Signal
      MAS             Multisynaptic Afferent System
      MASE            Multi-Sequence Alignments
      MASM            Macro Assembler
      MASM            Microsoft Assembler
      MASS            Mid-Atlantic and Southern States
      MASS            Monitor and Assembly System
      MASS            Multiple Access Sequential Selection
      MAST            Michigan Alcohol Screening Test
      MAST            Military Antishock Trousers
      MAST            Military Applications of Ship Tracks
      MAT             Micro-Alloy Transistor
      MAT             Multiple Attribute Tree
      MATF            Metropolitan-Area Transmission Facility
      MAU             Math Acceleration Unit
      MAU             Media Access Unit
      MAU             Multi-Station Access Unit
      MAU             Multiple Access Unit
      MAU             Multistation Access Unit
      MAW             Microsoft-At-Work
      MAX             Maximum
      MAXI            Modular Architecture for the Exchange of Information
      MB              Megabyte
      MB              Memory Buffer
      MB              Modem Busy
      MBB             Make Before Break
      MBC             Maximum Breathing Capacity
      MBCR            Molecular Biology Computing Resource
      MBCRR           Molecular Biology Computer Research Resource
      MBD             Minimal Brain Dysfunction
      MBI             Music and Brain Information Database
      MBM             Magnetic Bubble Memory
      MBnet           Manitoba Regional Network
      MBO             Management-By-Objectives
      MBP             Mannose-Binding Protein
      MBPP            Mammographic Breast Parenchymal Patterns
      MBPS            Megabits-Per-Second
      MBPS            Megabytes-Per-Second
      MBR             Memory Buffer Register
      MBR             Memory-Based Reasoning
      MBT             Maternal Blood Type
      MBT             Memory Block Table
      MBU             Manufacturing Business Unit
      MC              Magnetic Card
      MC              Magnetic Core
      MC              Manual Control
      MC              Master Control
      MC              Megacycle
      MC              Memory Controller
      MC              Microchannel
      MCA             Mechanical Computer-Aided Design
      MCA             Micro Channel Architecture
      MCAD            Mechanical Computer-Aided Design
      MCAE            Mechanical Computer-Aided Engineering
      MCAT            Medical College Admission Test
      MCB             Memory Control Block
      MCC             Magnetic Chip Carrier
      MCC             Management Control Center
      MCC             Master Control Center
      MCC             Master Control Console
      MCC             Medical Care Cost
      MCC             Microelectronics and Computer Consortia
      MCC             Mission Control Center
      MCC             Multi-Component Circuits
      MCCC            Master Communications Control Center
      MCCS            Mechanized Calling Card Service
      MCCU            Mobile Critical Care Unit
      MCD             Master Clerical Data
      MCD             Mean of the Consecutive Differences
      mcg             Microgram
      MCGA            Multi-Color Graphics Array
      MCH             Maintenance Channel
      MCI             Media-Control Interface
      MCI             Microwave Communications Incorporated
      mCi             Millicurie
      MCL             Microsoft Compatibility Labs
      MCLR            Midwest Consortium for Latino Research
      MCM             Magnetic Core Memory
      MCM             Master Control Module
      MCM             Memory-Control Module
      MCN             Metropolitan Campus Network
      MCN             Multiple Crossbar Network
      MCP             Master Control Program
      MCP             Master Control Program/Advanced System
      MCP             Multiport Communication Processor
      MCQ             Multiple-Choice Question
      MCR             Magnetic Character Reader
      MCR             Magnetic Character Recognition
      MCR             Manual Change Release
      MCR             Master Control Routine
      MCR             Multi-Channel Recording
      MCS             Maryland Coma Scale
      MCS             Master Control System
      MCS             Material Control System
      MCS             Meeting Communications Service
      MCS             Microsoft Consulting Services
      MCS             Multi-National Character Set
      MCS             Multi-Programmed Computer System
      MCS             Multi-Purpose Communications and Signaling
      MCS             Multiple Console Support
      MCSA            Multi-Channel Spectrum Analyzers
      MCSG            Mathematical and Computational Sciences Group
      MCSS            Multiple Chemical Sensitivity Syndrome
      MCT             Manufacturing Cycle Time
      MCT             Medium Chain Triglycerides
      MCT             Monocrotaline
      MCTD            Mixed Connective Tissue Disease
      MCU             Master Control Unit
      MCU             Micro-Program Control Unit
      MCU             Microprocessor Control Unit
      MCU             Multi-Chip Unit
      MCU             Multiple Control Unit
      MCV             Mean Corpuscular Volume
      MD              Magnetic Disk
      MD              Main Drum
      MD              Make Directory
      MD              Medium Dose
      MD              Message Data
      MD              Mid-Deck
      MD              Molecular Dynamics
      MD              Monitor Display
      MD              Monochrome Display
      MD              Motor Drive
      MD              Multiple Data
      MD              Multiple Dissemination
      MDA             Monochrome Display Adapter
      MDAC            Multiple-Dose Activated Charcoal
      MDBS            Mobile Database System
      MDC             Marker Distributor Control
      MDC             Materials Development Center
      MDC             Modification Detection Code
      MDC             Multi-Device Controller
      MDD             Major Depressive Disorder
      MDE             Modular Design Environment
      MDF             Menu Definition File
      MDF             Myocardial Depressant Factor
      MDI             Media Dependent Interface
      MDI             Metered-Dose Inhaler
      MDI             Multiple Document Interface
      MDII            Multiple Daily Insulin Injections
      MDK             Multimedia Developers Kit
      MDL             Minimum Detection Limit
      MDM             Minor-Determinant Mixture
      MDM             Modulator Data Module
      MDM             Monocyte-Derived Macrophages
      MDQS            Multi-Device Queueing System
      MDR             Memory Data Register
      MDR             Message Detail Record
      MDR             Minimum Daily Requirement
      MDR             Minimum-Design Requirement
      MDR             Multi-Channel Data Recorder
      MDR             Multi-Drug Resistant
      MDRAM           MultiBank DRAM
      MDRTB           Multi-Drug Resistant Tuberculosis
      MDS             Malfunction Detection System
      MDS             Market Decision System
      MDS             Memory Disk System
      MDS             Message Design Systems
      MDS             Microprocessor Development System
      MDS             Minimum Data Set
      MDS             Minimum Discernable Signal
      MDS             Modern Data Systems
      MDS             Multi-Point Distribution Service
      MDS             Multiple Dataset System
      MDSB            Message Digest Signature Block
      MDT             Mean-Down-Time
      MDTP            Math Diagnostic Testing Project
      MDV             Multi-Drive Version
      MDV             Multiple Dose Vial
      MDY             Month-Day-Year
      ME              Mechanical Efficiency
      ME              Mechanical Engineer
      ME              Micro-Electronic
      ME              Modular Electronics
      ME              Myalgic Encephalitis
      MEAR            Maintenance Engineering Analysis Record
      MEB             Memory Expansion Board
      MED             Monitor Execution and Dump
      MEDIS           Modular Electronic Document Imaging System
      MEDLARS         Medical Literature Analysis and Retrieval System
      MEDLINE         Medlars Online
      MEE             Multilocus Enzyme Electrophoresis
      MEED            Microcomputer Education for Employment
      MEF             Mid-Expiratory Flow
      MEG             Megabyte
      MEIDS           Miniaturized Electronic Information Delivery System
      MELANIE         Medical Electrophoresis Analysis Interactive Expert
      MEM             Manufacturing Engineering and Marketing
      MEM             Memory
      MEM             Minimum Essential Medium
      MEMDB           Medieval and Early Modern Data Bank
      MEMISTOR        Memory Register Storage Device
      MEN             Menu File
      MEN             Multiple Endocrine Neoplasia
      meq             Milliequivalent
      Meq/L           Milliequivalents-Per-Liter
      MER             Minimum Energy Requirements
      MERI            Medical Education Research and Information
      MES             Maximal Electroshock
      MES             Miscellaneous Equipment Specifications
      MeSH            Medical Subject Heading
      MET             Milliliters Of Oxygen Consumed Per Kilogram Of Body Mass
      METCOM          Metropolitan Tucson Electronic Communications Network
      METS            Metastases
      MEV             Million Electron Volts
      MEW             Microwave Early Warning
      MEX             Military Exchange
      MF              Mainframe
      MF              Medium-Frequency
      MF              Medium-Frequency Band
      MF              Microfiche
      MF              Multi-Frame
      MF              Multi-Frequency
      MFA             Multifactorial Analyses
      MFC             Magnetic-Tape Field Scan
      MFCM            Multi-Function Card Machine
      MFD             Master File Directory
      MFEN            Magnetic Fusion Energy Network
      MFENET          Magnetic Fusion Energy Network
      MFFS            Microsoft Flash File System
      MFKP            Multi-Frequency Key Pulsing
      MFLD            Message Field
      MFLOPS          Million Floating-Point Instructions-Per-Second
      MFLOPS          Million Floating-Point Operations-Per-Second
      MFLOPS          Millions of Floating Point Operations
      MFM             Modified Frequency Modulation
      MFM             Modified-Frequency Modulation
      MFP             Material Fielding Plan
      MFS             Macintosh File System
      MFS             Magnetic Tape Field Search
      MFS             Message Format Services
      MFSK            Multiple Frequency Shift Keying
      mg              Milligram
      MGA             Monochrome Graphics Adapter
      MGMT            Management
      MGR             Manager
      MGS             Mars Global Surveyer
      MH              Message Handling
      MHAC            Midwest Hispanic AIDS Coalition
      MHC             Major Histocompatibility Complex
      MHD             Magnetohydrodynamics
      MHD             Moving-Head Disk
      MHECB           Minnesota Higher Education Coordinating Board
      MHL             Microprocessor Host Loader
      MHP             Message Handling Processor
      MHS             Message Handling Service
      MHS             Message Handling System
      MHz             Megahertz
      MI              Machine Interface
      MI              Manual Input
      MI              Mode Indicator
      MI              Multiple Instruction Stream
      MI              Mycobacterial Infection
      MIACS           Manufacturing Information and Control System
      MIB             Management Information Base
      MIC             Magnetic Ink Characters
      MIC             Management Information Center
      MIC             Microwave Integrated Circuit
      MICA            Macro-Instruction Compiler
      MICE            Modular Integrated Communications Environment
      MICR            Magnetic Ink Character Recognition
      MICS            Management Information and Control System
      MIDEX           Mid-Sized Explorer
      MIDI            Musical Instrument Digital Interface
      MIDnet          Midwestern States Network
      MIDS            Matrix Information and Directory Services
      MIF             Management Information File
      MIF             Master Item File
      MIF             Meridian Internal Form
      MIF             Mid-Inspiratory Flow
      MIF             Migration Inhibitory Factor
      MIL             U S  Military Designation in Domain Name System
      MILNET          Military Network
      MIMD            Multiple-Instruction
      MIMD            Multiple-Instruction Multiple-Data
      MIME            Multi-Purpose Internet Mail Extension
      MIMG            Media Industry Marketing Group
      MIMR            Magnetic Ink-Mark Recognition
      MIN             Minimum
      MIN             Mobile Identification Number
      MINC            Medical Imaging Networked Consortium
      min             Minute
      MINS            Minor in Need of Services
      MINX            Multimedia Information Network Exchange
      MIO             Modular Input and Output
      MIO             Multiple Input-Processing
      MIP             Manual Input-Processing
      MIP             Maximal Inspiratory Pressure
      MIPE            Modular Information Processing Equipment
      MIPS            Millions-of-Instructions-Per-Second
      MIQ             Machine Intelligence Quotient
      MIQ             Minnesota Importance Questionaire
      MIR             Material Increase Request
      MIR             Memory Information Register
      MIR             Memory Input Register
      MIR             Micro-Instruction Register
      MIRL            Medical Imaging Research Lab
      MIRS            Management Information Retrieval System
      MIS             Management Information Science
      MIS             Management Information System
      MIS             Marketing Information System
      MISC            Miscellaneous
      MISP            Medical Information System Program
      MIT             Massachusetts Institute of Technolgy
      MIT             Master Instruction Tape
      MITAS           Marketing Information Tracking and Activities System
      MITS            Microcomputer Interactive Test System
      MIU             Machine Interface Unit
      MIU             Multi-Station Interface Unit
      MIV             Multiple Induction Variable
      MIX             Member Information Exchange
      MJU             Multi-Point Junction Unit
      MKDIR           Make Directory
      MKS             Meter-Kilogram/Second
      ML              Machine Language
      ML              Macro Language
      ML              Material List
      mL              Milliliter
      MLA             Microprocessor Language
      MLA             Microprocessor Language Assembler
      MLA             Multiple-Letter Acronym
      MLB             Multi-Layer Board
      MLC             Minimum Lethal Concentration
      MLD             Minimum Lethal Dose
      MLDS            Medium Large Disk Systems
      MLE             Mesoscale Lightning Experiment
      MLE             Microprocessor Language Editor
      MLEM            Multi-Language Environment
      MLF             Monthly License Fee
      MLM             Medical Logic Modules
      MLOA            Medical Leave-of-Absence
      MLPSC           Monthly Licensed Program Support Charge
      MLPWB           Multilayer Printed Wiring Board
      MLR             Memory Lockout Register
      MLR             Monodisperse Latex Reactor
      MLS             Microwave Landing System
      MLT             Mechanized Loop Testing
      MLV             Monitored Live Voice
      MM              Main Memory
      MM              Mass Memory
      mm              Millimeter
      mm2             Square Millimeter
      mm3             Cubic Millimeter
      MMA             Medical Management Analysis
      MMA             Microcomputer Managers Association
      MMA             Multiple Module Access
      MMAC            Multimedia Access Center
      MMC             Microcomputer Marketing Council
      MMC             Minicomputer Maintenance Center
      MMD             Moving Map Display
      MME             Multimedia Extensions
      MMFS            Manufacturing Message Format Standard
      mmHg            Millimeters of Mercury
      MMI             Man-Machine Interface
      MMIS            Medical Management Information Systems
      MML             Man-Machine Language
      MMOC            Minicomputer Maintenance Operations Center
      mmol            Millimole
      mmol/L          Millimolar
      MMPI            Minnesota Multiple Personality Inventory
      MMPS            Medicare Mortality Predictor System
      MMR             Measles-Mumps-Rubella
      MMS             Manufacturing Message Specifications
      MMS             Mass Memory Store
      MMS             Memory Management System
      MMS             Municipal Management System
      MMTB            Multimedia Textbooks
      MMU             Memory-Management Unit
      MMUSIC          Multiparity Multimedia Session Control
      MMWR            Morbidity And Mortality Weekly Report
      MNC             Mononuclear Cell
      MNCS            Multipoint Network-Control System
      MNOS            Metal-Nitride-Oxide Semiconductor
      MNP             Microcom Networking Protocol
      MO              Manual Output
      MO              Mars Observer
      MO              Master Oscillator
      MO              Miscellaneous Operation
      MO              Month
      MOA             Military Operations Area
      MOB             Moment of Bliss
      MOC             Master Operational Computer
      MOC             Mission Operations Control
      MOD             Modular
      MOD             Modulation
      MOD             Module
      MODE            Middeck O-Gravity Dynamics Experiment
      MODEM           Modulator-Demodulator
      MODSAF          Modular Semi-Automated Forces
      MODY            Maturity Onset Diabetes of Youth
      MOE             Measure of Effectiveness
      MOF             Maximum Observed Frequency
      MOF             Multiple Organ Failure
      MOFA            Manitoba Organization of Faculty Associations
      MOFW            Men of Few Words
      MOG             Minicomputer Operations Group
      MOHILL          Machine-Oriented High-Level Language
      MOL             Machine-Oriented Language
      mol             Mole
      MOL-WT          Molecular Weight
      mol/L           Molar
      MOLIS           Minority On-Line Information Service
      MOM             Microsoft Office Manager
      MOME            Mail Order Management Expert
      MOMS            Multicenter Occupational Morbidity Study
      MON             Monitor
      MONO            Monochrome
      MOO             MUD Object-Oriented
      MOPA            Master Oscillator-Power Amplifier
      MOPB            Manually-Operated Plotting Board
      MORNET          Missouri Research Network
      MOS             Management Operating System
      MOS             Medical Office System
      MOS             Medical Outcomes Study
      MOS             Metal-Oxide Semiconductor
      MOSF            Multiple Organ System Failure
      mOsm            Milliosmole
      MOSPF           Multicast Extensions to OSPF
      MOTAS           Member of the Appropriate Sex
      MOTD            Message of The Day
      MOTIS           Message-Oriented Text Interchange System
      MOTOS           Member of the Opposite Sex
      MOTSS           Member of the Same Sex
      MOTV            Manned Orbital Transfer Vehicle
      MOV             Move Data
      MOVS            Move String
      MOX             Mixed Oxide Fuel
      MP              Maintenance Point
      MP              Massively Parallel
      MP              Mathematical Programming
      MP              Melting Point
      MP              Modem Port
      MP              Modular Plug
      MP              Multiprocessor
      MPACS           Management Planning and Control System
      MPB             Male Pattern Baldness
      MPC             Multimedia Personal Computer
      MPC             Multiprocess Communications
      MPCC            Microprocessor Common Control
      MPCC            Multi-Protocol Communications Controller
      MPD             Multiple Personality Disorder
      MPD             Myofascial Pain Dysfunction
      MPDA            Monitor Printer Diskette Adapter
      MPDU            Message Protocol Data Unit
      MPE             Multi-Programming Executive
      MPEC            Multi-Purpose Experiment Canister
      MPEG            Moving Picture Experts Group
      MPEP            Model Performance Evaluation Program
      MPESS           Mission Peculiar Equipment Support Structure
      MPF             Message Processing Facility
      MPG             Microwave Pulse Generator
      MPL             Multiple
      MPME            Manufacturing Process and Material Engineering
      MPP             Massively Parallel Processing
      MPP             Message Processing Program
      MPP             Mono Power Pack
      MPPD            Multi-Purpose Peripheral Device
      MPPL            Multi-Purpose Processing Language
      MPS             Master Production Schedule
      MPS             Math and Physical Sciences
      MPS             Megabytes Per Second
      MPS             Microprocessor System
      MPS             Multi-Programming System
      MPS             Myofascial Pain Syndrome
      MPSC            Manufacturing Planning and Control Systems
      MPSCL           Mathematical Programming System Control Language
      MPSE            Mexican Payload Specialist Experiment
      MPSS            Multi-Process Start-Up System
      MPSX            Mathematical Programming System Extended
      MPT             Ministry of Posts and Telecommunications
      MPU             Microprocessor Unit
      MPW             Macintosh Programmer's Workshop
      MPX             Multi-Packet Accelerator
      MPX             Multiplexer
      MPY             Multiply
      MQ              Multiplier Quotient
      MQR             Multiplier Quotient Register
      MR              Magnetic Resonance
      MR              Magneto-Resistive
      MR              Memory Read
      MR              Memory Register
      MR              Mental Retardation
      MR              Mitral Regurgitation
      MR              Modem Ready
      MR              Moderately Resistant
      MR              Mortality Rate
      MRA             Minimum Retirement Age
      MRAA            Meter Reading Access Arrangement
      MRAD            Mass Random Access Disk
      mrad            Millirad
      MRB             Materials Review Board
      MRC             Medical Research Council
      MRCF            Microsoft Real-Time Compression Format
      MRCI            Microsoft Real-Time Compression Interface
      MRDM            Malnutrition-Related Diabetes Mellitus
      MRF             Melanocyte-Releasing Factor
      MRFL            Mandatory Record and File Locking
      MRI             Magnetic Resonance Imaging
      MRL             Minimal Response Level
      MRM             Micro Resource Manager
      MRN             Media Relations Network
      mRNA            Messenger Ribonucleic Acid
      MRO             Multi-Region Option
      MRP             Manufacturing Resource Planning
      MRP             Manufacturing Resources Planning
      MRP             Material Resource Planning
      MRP             Materials Requirement Planning
      MRSA            Methicillin-Resistant Staphylococcus Aureus
      MRT             Mean Residence Time
      MRT             Mean-Repair-Time
      MRT             Multiple Requests Terminal
      MRU             Machine Records Unit
      MRU             Most-Recently-Used
      MS              Magnetic Storage
      MS              Main Storage
      MS              Maintenance State
      MS              Manuscript
      MS              Mass Storage
      MS              Median Survival
      MS              Memory System
      MS              Microsecond
      MS              Microsoft Corporation
      MS              Millisecond
      MS              Milliseconds
      MS              Mission Specialist
      MS-DOS          Microsoft Disk Operating System
      MSA             MedSearch America
      MSA             Multiple System Atrophy
      MSACM           Microsoft Audio Compression Manager
      MSAT            Mobile Satellite Terminal
      MSB             Mid-Range Systems Business
      MSB             Most-Signficant-Bit
      MSC             Minnesota Supercomputing Center
      MSC             Multiple System Coupling
      MSCC            Mississippi State Computer Center
      MSCDEX          Microsoft CD-Rom Extensions
      MSCP            Mass Storage Control Protocol
      MSD             Mass Storage Device
      MSD             Metabolic Screening Disorders
      MSD             Micro Systems Development
      MSD             Most-Signficant-Digit
      MSDR            Multiplexed Streaming Data Request
      MSDS            Material Safety Data Sheet
      MSDS            Microsoft Developer Support
      msec            Millisecond
      MSF             Mass Storage Facility
      MSF             Microsoft Solutions Framework
      MSFC            Marshall Space Flight Center
      MSG             Message
      MSG             Message Region
      MSG             Monosodium L-Glutamate
      MSG             Program Message File
      MSH             Melanocyte Stimulating Hormone
      MSHP            Maintenance and Service History Program
      MSI             Medium-Scale Integration
      MSIS            Manufacturing Systems Integration Service
      MSK             Mask
      MSL             Member Specification Library
      MSL             Microgravity Science Laboratory
      MSLT            Multiple Sleep Latency Test
      MSN             Manufacturing Sequence Number
      MSNF            Multiple System Networking Facility
      MSO             Multi-Vendor Support Operation
      MSOS            Mass Storage Operating System
      MSP             Mars Surveyor Program
      MSP             Mass Storage Pedestal
      MSP             Microsoft Paint File
      MSPM            Manufacturing System Program Manager
      MSR             Management Support Representative
      MSR             Monthly Status Reports
      MSS             Management Support System
      MSS             Mass Storage Subsystem
      MSS             Mass Storage System
      MSS             Multi-Lan Storage System
      MSSC            Marketing Sales Strategy Committee
      MSSE            Mass Storage System Extended
      MST             Materials Science and Technology
      MST             Mountain Standard Time
      MST3K           Mystery Science Theater 3000
      MSTI            Miniature Seeker Technology Integration
      MSU             Modem Sharing Units
      MT              Machine Translation
      MT              Magnetic Tape
      MT              Maintenance Technician
      MT              Measured Time
      MT              Monotherapy
      MT              Multiple Transfer
      MTA             Message Transfer Agent
      MTB             Magnetic Tape Billing
      MTB             Mycobacterium Tuberculosis
      MTBB            Mean-Time Between-Breakdowns
      MTBF            Mean-Time Between-Failures
      MTBPR           Mean-Time Between-Parts-Replacement
      MTBSI           Mean-Time Between System Interruptions
      MTC             Magnetic Tape Control
      MTC             Medullary Thyroid Carcinoma
      MTCU            Magnetic Tape Control Unit
      MTD             Maximum-Tolerated Dose
      MTE             Multiple Terminal Emulator
      MTF             Master Test Frame
      MTF             Mean-Time-To-Failure
      MTF             Microsoft Tape Format
      MTL             Merged Transistor Logic
      MTM             Multiple Terminal Manager
      MTO             Multi-Tasking Only
      MTO             Music Theory Online
      MTPE            Mission to Planet Earth
      MTPS            Medical Test Planning System
      MTR             Magnetic Tape Recorder
      MTS             Magnetic Tape System
      MTS             Message Telecommunications Service
      MTS             Message Telephone Service
      MTS             Message Transport Service
      MTS             Mobile Telephone Service
      MTSO            Mobil Telephone Switching Office
      MTSO            Mobile Telephone Switching Office
      MTT             Magnetic Tape Terminal
      MTT             Magnetic Tape Transport
      MTTF            Mean-Time-To-Failure
      MTTFF           Mean-Time-To-First-Failure
      MTTR            Mean-Time-To-Recovery
      MTTR            Mean-Time-To-Repair
      MTU             Maintenence Termination Unit
      MTU             Maximal Transmission Unit
      MTU             Maximum Transfer Unit
      MTX             Mobile Telephone Exchange
      mU              Milliunit
      MUD             Multi-User Dungeon
      MUD             Multiple-User Dialogue
      MUD             Multiple-User Dimension
      MUDS            Minimum Uniform Data Set
      MUF             Maximum Usable Frequency
      MUL             Multiply
      MULTICS         Multiplex Information Computer Services
      MUMPS           Multi-Programming System
      MUP             Monitor Unit Potential
      MUP             Multiple United Naming Convention Provider
      MUS             Masscomp Users Society
      MUSE            Multi-User Social Environment
      MUSH            Mail-User's Shell
      MUSH            Multi-User Shared Hallucination
      MUX             Multiplexer
      MV              Mean Value
      MV              Measured Value
      MV              Millivolt
      MVA             Motor Vehicle Accident
      MVC             Multimedia Viewer Compiler
      MVDI            Microfield Virtual Device Interface
      MVDM            Multiple Virtual DOS Machines
      MVDT            Modular Voice/Data Terminal
      MVE             Modular Visualization Environment
      MVGA            Monochrome Video Graphics Array
      MVI             Multivitamin Injection
      MVP             Mitral Valve Prolapse
      MVP             Multimedia Video Processor
      MVS             Multiple Virtual Storage
      MVS             Multiple Virtual Systems
      MVS             Multiprogramming With Virtual Storage
      MW              Memory Write
      MW              Milliwatt
      MW              Molecular Weight
      MWAP            Memory-Linked Wavefront Array-Processor
      MWI             Message Waiting Indicator
      MWM             Motif Window Manager
      MX              Mail Exchanger
      MX              Matrix
      MX              Multiplex
      MY              Million Years
      N               Nano
      N               Newton Unit of Force
      N               No
      N               Normal
      N               Number
      N               Numeric
      NA              Next-Address
      NA              Not-Applicable
      NA              Not-Assigned
      NAARS           National Automated Accounting Research System
      NAB             Netware Asynchronous Board
      NABS            National AIDS Behavioral Surveys
      NABS            North American Benthic Society
      NAC             National Archives of Canada
      NAC             Network Administration Center
      NAC             Networks and Communications
      NACI            National Advisory Committee On Immunization
      NACLP           North American Conference on Logic Programming
      NACM            Networks and Communications Marketing
      NACS            National Advisory Committee on Semiconductors
      NACS            Netware Asynchronous Connection Service
      NACSIS          National Academic Center for Science Information System
      NAD             National Association of the Deaf
      NAD             Network Access Device
      NAD             Nicotinamide Adenine Dinucleotide
      NAD             No Active Disease
      NAD             No Acute Distress
      NADS            National Association for Down Syndrome
      NADB            National Archeological Database
      NAEC            Novell Authorized Education Center
      NAFSA           National Association of Foreign Student Advisors
      NAG             Network Architecture Group
      NAK             Negative Acknowledgement
      NAL             National Agricultural Library
      NALIS           Nevada Academic Libraries Information System
      NAM             National Account Manager
      NAM             Name and Address Module
      NAMCS           National Ambulatory Medical Care Survey
      NAN             Northern AIDS Network
      NAP             National AIDS Programmes
      NAPLPS          North American Presentation Level Protocol Syntax
      NARA            National Archives and Records Administration
      NARDAC          Navy Regional Data Automation Center
      NARES           Non-Allergic Rhinitis with Eosinophilia Syndrome
      NARIC           National Rehabilitation Information Center
      NAS             National Academy of Sciences
      NAS             National Advanced Systems
      NAS             National Audubon Society
      NAS             Network Application Services
      NAS             Network Application Support
      NAS             No Added Salt
      NAS             Numerical and Atmospheric Sciences Network
      NASA            National Aeronautics and Space Administration
      NASDA           National Space Development Agency of Japan
      NASI            Network Asychronous Services Interface
      NATICH          National Air Toxics Information Clearinghouse
      NAU             Network Access Unit
      NAU             Network-Addressable Unit
      NAUN            Nearest Active Upstream Neighbor
      NB              NetBIOS
      NBCD            Natural Binary Coded Decimal
      NBE             Not-Below-Or-Equal
      NBFCP           NetBIOS Frames Control Program
      NBFM            Narrow Band Frequency Modulation
      NBIAP           National Biological Impact Assessment Program
      NBO             Network Business Opportunity
      NBP             Name Binding Protocol
      NBS             National Bureau of Standards
      NBW             Normal-Birth-Weight
      NC              Negative Control
      NC              Network Channel
      NC              Network Connect
      NC              Network Control
      NC              Network Controller
      NC              No Change
      NC              No Charge
      NC              No Connection
      NC              Normally Closed
      NC              Numerical Control
      NCA             Network Communications Adapter
      NCA             Network Control Analysis
      NCA             Nonspecific Cross Reacting Antigen
      NCAD            New Cumberland Army Depot
      NCAIR           National Center for Automated Information Research
      NCAL            National Center for Adult Literacy
      NCAR            National Center for Atmospheric Research
      NCAT            National Catalog Database
      NCB             Network Control Block
      NCBI            National Center for Biotechnology Information
      NCC             National Computer Conference
      NCC             Network Control Center
      NCC             Network Control Computer
      NCC             Network Coordination Centre
      NCCAN           National Center on Child Abuse and Neglect
      NCCD            National Center for Computer Crime Data Network Communication Control
      NCCF            Network Communications Control Facility
      NCCIP           National Center for Clinical Infant Programs
      NCCLS           National Committee for Clinical Laboratory Standards
      NCCS            NASA Center for Computational Sciences
      NCCSIR          National Center for Catastrophic Sports Injury Research
      NCD             Network Computing Devices
      NCD             Non-Communicable Diseases
      NCDC            National Climactic Data Center
      NCDDG           National Cooperative Drug Discovery Groups
      NCDS            NASA Climate Data System
      NCE             Nomadic Computing Environment
      NCEER           National Center for Earthquake Engineering Research
      NCEMCH          National Center for Education in Maternal and Child Health
      NCEP            National Cholesterol Education Program
      NCEPOD          National Confidential Enquiry Into Perioperative Deaths
      NCF             National Capital Freenet
      NCF             Neutrophil-Chemotactic Factor
      NCGA            National Computer Graphics Association
      NCHPC           National Consortium for High Performance Computing
      NCHS            National Center for Health Statistics
      NCI             National Cancer Institute
      NCI             Network Channel Interface
      NCI             Non-Coded Information
      NCIC            National Cartographic Information Center
      NCIC            National Crime Information Center
      NCM             Non-Consumed Medicines
      NCN             National Cardiology Network
      NCO             National Coordination Office
      NCP             Network Control Processor
      NCP             Network Control Program
      NCP             Not Copy-Protected
      NCP             Nursing Care Plan
      NCPIE           National Council on Patient Information and Education
      NCR             National Capital Region
      NCR             National Cash Register
      NCREMP          North Central Region Educational Materials Project
      NCRR            National Center for Research Resources
      NCS             National Communications Systems
      NCS             National Computer Systems
      NCS             National Crime Survey
      NCS             Nerve Conduction Study
      NCS             Network Computing System
      NCS             Network Control System
      NCSA            National Center for Supercomputing Applications
      NCSC            National Computer Security Center
      NCSI            Network Communications Services Interface
      NCSL            National Computer Systems Laboratory
      NCT             Network Control and Timing
      NCTE            Network Channel-Terminating Equipment
      NCTL            National Computer and Telecommunications Laboratory
      NCU             Network Control Unit
      NCU             Network Conversion Unit
      NCUA            National Credit Union Administration
       NCV             Nerve Conduction Velocity
      NCV             No Commercial Value
      NCVS            National Physician Credentials Verification Service
      ND              Network Disk
      ND              Not Determined
      NDA             Network Delivery Access
      NDA             New Drug Application
      NDBMS           Network Database Management System
      NDC             Network Data Collection
      NDCC            Network Data Collection Center
      NDDL            Neutral Data Definition Language
      NDEA            National Defense Education Act
      NDF             No Defect Found
      NDI             National Death Index
      NDI             Network Design and Installation
      NDI             Non-Developmental Items
      NDIC            National Diabetes Information Clearinghouse
      NDIS            Network Driver Interface Specification
      NDL             Network Database Language
      NDLC            National Distance Learning Center
      NDM             Network Data Mover
      NDMS            NetWare Distributed Management System
      NDP             Numeric Data Processor
      NDPA            Network Problem Determination Application
      NDPT            Neurodevelopment Physical Therapy
      NDR             Non-Destructive Read
      NDRO            Non-Destructive Readout
      NDS             NetWare Directory Services
      NDS             Network Data System
      NDSS            National Down Syndrome Society
      NDT             Net Data Throughput
      NDT             Non-Destructive Testing
      NDU             Network Device Utility
      NDX             Index File
      NE              Network Elements
      NE              Non-Exempt
      NEA             National Endowment for the Arts
      NEAR            National Electronic Accounting and Reporting
      NEAR            Near Earth Asteroid Rendezvous
      NEARNET         New England Academic and Research Network
      NEAT            New Enhanced AT Chipset
      NEC             National Electrical Code
      NEC             Nippon Electronic Company
      NED             NASA Extragalactic Database
      NED             No Evidence of Recurrent Disease
      NEFS            Network-Extensible File System
      NEG             Negative
      NEG             Two's Complement Negation
      NEH             National Endowment for the Humanities
      NEII            National Engineering Information Initiative
      NEJM            New England Journal of Medicine
      NEL             National Engineering Laboratory
      NELIAC          Navy Electronics Laboratory
      NEM             Nothing Else Matters
      NEP             Never-Ending Program
      NERC            Natural Enviroment Research Council
      NEREN           Nebraska Research and Education Network
      NERSC           National Energy Research Supercomputer Center
      NES             National Energy Strategy
      NES             Network Application Services
      NES             News Electronic Service
      NES             Not-Elsewhere-Specified
      NESAC           National Electronic Switching Assistance Center
      NESC            National Energy Software Center
      NET             National Educational Television
      NETBIOS         Network Basic Input-Output System
      NETDA           Network Design and Analysis
      NETP            New Equipment Training Plan
      NETPARS         Network Performing Analysis Reporting System
      NETSS           National Electronic Telecommunication Surveillance System
      NEWS            NetWare Early Warning System
      NEWS            Network-Extensible Windowing System
      NFAIS           National Federation of Abstracting and Indexing Services
      NFF             No Fault Found
      NFFE            National Federation of Federal Employees
      NFMA            National Forest Management Act
      NFR             No Further Requirement
      NFS             Network Facilities Services
      NFS             Network File Service
      NFS             Network File System
      NFSP            Netware File Service Protocol
      NFT             Network File Transfer
      ng              Nanogram
      NG              Newsgroup
      NGA             Notice of Grant Award
      NGDB            Normalized Gene Designation Database
      NGDD            Normalized Gene Design Database
      NGE             Not-Greater-Or-Equal
      NGO             Non-Governmental Organization
      NGU             Non-Gonococcal Urethritis
      NHANES          National Health and Nutrition Examination Survey
      NHDS            National Hospital Discharge Survey
      NHEFS           NHANES I Epidemiologic Followup Study
      NHES            National Health Examination Survey
      NHI             National Health Insurance
      NHIS            National Health Interview Survey
      NHL             Non-Hodgkin's Lymphoma
      NHLBI           National Heart Lung and Blood Institute
      NHRAIC          Natural Hazards Research and Applications Information Center
      NHRP            Next Hop Resolution Protocol
      NHS             No Controlled Human Studies
      NHS             Non-Hemolytic Streptococci
      NHSC            National Health Service Corps
      NI              Network Interconnect
      NI              Network Interface
      Ni              Nickel
      NI              Numerical Index
      NIA             National Institute on Aging
      NIA             National Irrigation Administration
      NIA             Network Information Access
      NIAID           National Institute of Allergy and Infectious Disease
      NIBSC           National Institute for Biological Standards and Control
      NIC             Network Information Center
      NIC             Network Interface Card
      NIC             Network Interface Controller
      NIC             Numeric Intensive Computing
      NICAD           Nickel Cadmium
      NICHHD          National Institute of Child Health and Human Development
      NICD            National Information Center on Deafness
      NICE            Network Information and Control Exchange
      NICLC           Nebraska Independent College Library Consortium
      NICOL           Network Information Center On-Line
      NICOLAS         Network Information Center On-Line Aid System
      NICU            Newborn Intensive Care Unit
      NIDDM           Non-Insulin-Dependent Diabetes Mellitus
      NIDR            National Institute of Dental Research
      NIE             National Institute Environment
      NIEHS           National Institute of Environmental Health Sciences
      NIFTP           Network Independent File Transfer Program
      NIH             National Institute of Health
      NIHGL           National Institute of Health Grant Line
      NII             National Information Infrastructure
      NIIT            National Information Infrastructure Testbed
      NIM             Nuclear Instrumentation Module
      NIMH            National Institute of Mental Health
      NINE            National Infertility Network Exchange
      NIOSH           National Institute for Occupational Safety and Health
      NIPEH           National Integrated Programme on Environment and Health
      NIR             Network Information Registry
      NIR             Network Information Retrieval
      NIR             No Identified Risk
      NIS             Network Information Services
      NIS             Newly-Independent States
      NIS             Nursing Information System
      NISC            Network Information and Support Center
      NISEE           National Information Service for Earthquake Engineering
      NISI            Network Information Services Infrastructure
      NISO            National Information Standards Organization
      NISS            National Information on Software and Services
      NISSPAC         NISS Public Access Collections
      NIST            National Institute for Standards and Technology
      NITC            National Information Technology Center
      NIU             Network Interface Unit
      NIU             North American ISDN Users
      NIUF            North American ISDN Users Forum
      NIVL            Non-Invasive Vascular Laboratory
      NJE             Network Job Entry
      NJTREE          Neighbor-Joining Tree Program
      NKA             Neurokinin A
      NKA             No Known Allergies
      NKDA            No Known Drug Allergy
      NKHS            Non-Ketotic Hyperosmolar Syndrome
      NKS             Network Knowledge Server
      NKSR            Non-Kernel Security Related
      nL              Nanoliter
      NL              New Line
      NL              Normal
      NLDM            Network Logical Data Manager
      NLDP            National Launch Development Program
      NLE             Not-Less-Or-Equal
      NLM             National Library of Medicine
      NLM             NetWare Loadable Module
      NLP             Natural Language Processing
      NLP             Navy Leadership Policy
      NLP             Neurolinguistic Programming
      NLP             Non-Linear Programming
      NLQ             Near-Letter-Quality
      NLR             Noise Load Ratio
      NLRB            National Labor Relations Board
      NLS             Native Language Support
      NLS             Nayural Language System
      NLS             Network License Server
      NLS             Nuclear Localization Signal
      NLT             Not-Later-Than
      nm              Nanometer
      NM              Network Module
      NM              Nurse-Midwives
      NMA             National Medical Association
      NNC             Nebulus Network Control
      NMC             Network Management Center
      NMD             Nursing Minimum Data
      NMDS            Nursing Minimum Data Set
      NME             Noise Measuring Equipment
      NMES            National Medical Expenditure Survey
      NMI             Non-Maskable Interrupt
      NMJ             Neuromuscular Junction Disease
      nmol            Nanomole
      NMOS            Negative Channel Metal-Oxide Semiconductor
      NMOS            Nitride-Metal-Oxide Semiconductor
      NMP             Network Management Protocol
      NMPF            Network Management Productivity Facility
      NMR             Normal Mode Rejection
      NMR             Nuclear Magnetic Resonance
      NMS             NetWare Management System
      NMS             Network Management Station
      NMS             Network Management System
      NMS             Network Monitoring Station
      NMVT            Network Management Vector Transport
      NNDSS           National Notifiable Disease Surveillance System
      NNIS            National Nosocomial Infection Surveillance System
      NNRTI           Non-nucleoside RT Inhibitor
      NNS             Netware Named Services
      NNSC            NSF Network Service Center
      NNTP            Net News Transfer Protocol
      NNTP            Network News Transport Protocol
      NNX             Network Numbering Exchange
      NO              Normally Open
      NOAA            National Oceanographic and Atmospheric Administration
      NOAEL           No-Observed-Adverse-Effect Level
      NOAO            National Optical Astronomy Observatories
      NOC             Network Operations Center
      NOCS            Network Operations Center System
      NODIS           NSSDC Online Data and Information Service
      NODS            NASA Ocean Data System
      NOEL            No-Observed-Effect-Level
      NOI             Node Operator Interface
      NOI             Notice of Intent
      NOM             Nominal
      NOMA            National Online Media Association
      NOMS            Network Operations and Management Symposium
      NOP             No Operation
      NOR             Net Operating Revenue
      NOR             Not Or
      NORC            Naval Ordinance Research Computer
      NORGEN          Network Operations Report Generator
      NOS             Network Operating System
      NOS             Not Otherwise Specified
      NOSC            Naval Ocean Systems Center
      NOSL            Night/Day Optical Survey of Lightning
      NOST            NASA Science Data Systems Standards Office
      NOT             One's Complement Negation
      NOTIS           Network Operator Trouble Information System
      NP              Net Proceeds
      NP              Non-Progressors
      NPA             Network Performance Analyzer
      NPA             Network Professional Association
      NPA             No Power Alarm
      NPC             Non-Protein Calories
      NPDA            Network Problem Determination Application
      NPDB            National Practitioner Data Bank
      NPG             New Product Group
      NPI             Network Printer Interface
      NPL             New Product Line
      NPL             Non-Procedural Language
      NPM             Network Performance Monitor
      NPN             Non-Protein Nitrogen
      NPO             Nothing By Mouth
      NPP             Net Primary Productivity
      NPP             Non-Physician Practitioner
      NPR             National Performance Review
      NPR             National Public Radio
      NPS             Naval Postgraduate School
      NPS             Non-Point Source Program
      NPSI            Network Protocol Service Interface
      NPSS            NASA Packet Switch System
      NPTN            National Public Telecomputing Network
      NPU             Natural Processing Unit
      NPV             Net Present Value
      NQS             Network Queuing System
      NR              Negative Response
      NR              No Regression
      NR              No Response
      NR              Noise Ratio
      NR              Not Required
      NR              Number
      NRAO            National Radio Astronomy Observatory
      NRBC            Nucleated Red Blood Cell
      NRC             National Research Council
      NRC             Noise Reduction Coefficient
      NRC             Nuclear Regulatory Commission
      NRCLSE          National Resource for Computers in Life Science Education
      NRDC            Natural Resource Defense Council
      NRE             Negative Regulatory Element
      NRE             Negative Resistance Effect
      NREN            National Research and Education Network
      NRFD            Not Ready for Data
      NRL             Naval Research Laboratory
      NRL             Naval Research Labs
      NRLC            National Right to Life Committee
      NRLF            Northern Regional Library Facility
      NRM             No Regular Medicines
      NRMP            National Residency Matching Program
      NRN             National Research Network
      NRN             No Reply Necessary
      NRO             National Reconnaissance Office
      NRS             Name Registration System
      NRT             Non-Requesting Terminal
      NRZ             Non-Return to Zero
      NS              Name Server
      NS              Nanosecond
      NS              National Standard
      NS              Network Services
      NS              Network Supervisor
      NS              Neutron Star
      NS              Not Seen
      NS              Not Significant
      NS              Not-Specified
      NSA             National Security Agency
      NSAID           Non-Steroidal Anti-Inflammatory Drug
      NSAP            Network Service Access Point
      NSB             National Science Board
      NSC             National Security Council
      NSC             Network Service Center
      NSC             Network Systems Corporation
      NSC             Noise Suppression Circuit
      NSCS            Network Service Center System
      NSD             Norwegian Social Science Data Services
      NSDD            National Security Decision Directive
      NSE             Network Software Environment
      NSEC            Network Switching Engineering Center
      NSEL            Network Service Selector
      NSEM            Network Software Environment
      NSERC           Natural Sciences and Research Council
      NSF             National Science Foundation
      NSFNET          National Science Foundation Network
      NSG             Network Services Group
      NSI             NASA Science Internet
      NSI             Non-Syncytium Inducing
      NSN             NASA Science Network
      NSN             National Stock Number
      NSO             National Solar Observatory
      NSP             National Strategic Plan
      NSP             Network Services Protocol
      NSPMP           Network Switching Performance Measurement Plan
      NSR             New Source Review
      NSR             Normal Sinus Rhythm
      NSS             Nodal Switching Systems
      NSSDC           National Space Science Data Center
      NSSL            Neon Sign Stat League
      NST             Non-Stress Test
      NSTL            National Software Testing Lab
      NSTS            National Space Transportation System
      NSU             Networking Support Utilities
      NSU             Non-Specific Urethritis
      NSVD            Normal Spontaneous Vaginal Delivery
      NT              Network Termination
      NT              New Technology
      NT              No Transmission
      NT              Not Tested
      NTAS            Windows NT Advanced Server
      NTE             Network Terminal Equipment
      NTE             Not-To-Exceed
      NTEC            Network Technical Equipment Center
      NTF             No Trouble Found
      NTFS            New Technology File System
      NTFS            Windows NT File System
      NTIA            National Telecommunications & Information Administration
      NTIS            National Technical Information Service
      NTK             Need-To-Know
      NTK             Newton Tool-Kit
      NTM             Non-Tuberculous Mycobacteria
      NTN             National Telecommunications Network
      NTO             Network Terminal Option
      NTP             National Toxicology Program
      NTP             Network Time Protocol
      NTPF            Number of Terminals Per Failure
      NTS             Network Technical Support
      NTS             Network Test System
      NTSC            National Television Standard Code
      NTSC            Naval Training Systems Center
      NTT             New Technology Telescope
      NTT             Nippon Telephone and Telegraph
      NU              Name Unknown
      NUA             Network User Address
      NUI             Network User Identification
      NUI             Network User Interface
      NUL             Dummy Device
      NUM             Number
      NUS             Not Available In the United States
      NUSAT           Northern Utah Satellite
      NUSC            Naval Underwater Systems Center
      NUT             Nutrient
      NUWES           Naval Undersea Warfare Engineering Station
      NVD             Nausea Vomiting Diarrhea
      NVLAP           National Validation Laboratory Program
      NVM             Non-Volatile Memory
      NVN             National Videotex Network
      NVRAM           Non-Volatile Random Access Memory
      NWS             National Weather Service
      NWSS            Networks and Site Services
      NYD             Not Yet Diagnosed
      NYU             New York University
      O               Octal
      O               Output
      O/S             Operating System
      OA              Office Assistant
      OA              Office Automation
      OA              NASA Office of the Administrator
      OA              Operations Analysis
      OACIS           Oregon Advanced Computing Institute
      OACT            NASA Office of Advanced Concepts and Technology
      OADG            Open Architecture Development Group
      OAG             Official Airline Guide
      OAGEE           Official Airlines Guide Electronic Edition
      OAI             Open Applications Interface
      OAO             Orbiting Astronomical Observatories
      OAP             Occupational Aptitude Patterns
      OAP             Office Automation Planning
      OAQPS           Office of Air Quality Planning and Standards
      OARE            Orbital Acceleration Research Experiment
      OAS             Office Automation System
      OASC            Office of Advanced Scientific Computing
      OARnet          Ohio Academic Resources Network
      OASF            Office Automation System Facilities
      OASIS           OEX Autonomous Supporting Instrumentation System
      OASIS           OSU Academic Services Information Systems
      OAST            Office of Aeronautics and Space Technology
      OAT             Outside Air Temperature
      OATS            Office Automation Technology and Services
      OAV             Other Anti-Retrovirals
      OB              Output Buffer
      OBC             Onboard Computer
      OBI             Online Book Initiative
      OBJ             Object
      OBRA            Omnibus Budget Reconciliation Act
      OBS             Organic Brain Syndrome
      OBTW            Oh
      OC              Object Class
      OC              On Call
      OCA             U S  Office of Consumer Affairs
      OCAR            Omni-Cultural Academic Resource
      OCC             Operations Control Center
      OCC             Other Common Carrier
      OCCA            Open Cooperative Computing Architecture
      OCD             Obsessive-Compulsive Disorder
      OCEANIC         Ocean Information Center
      OCF             Open Computing Facility
      OCG             Oral Cholecystogram
      OCL             Operation Control Language
      OCLC            Online Computer Library Catalog
      OCM             Operations Control Manager
      OCO             Object Code Only
      OCP             Oral Contraceptive Pill
      OCR             Optical Character Reader
      OCR             Optical Character Recognition
      OCS             Obstetric Computer Systems
      OCST            Office of Commercial Space Transportation
      OCT             Octal
      OCT             Oxytocin Challenge Test
      OCTW            Optical Communication Through the Shuttle Window
      OCU             Office Channel Unit
      OD              Opportunistic Disease
      OD              Optical Disk
      OD              Outer Diameter
      OD              Output Data
      ODA             Office Document Architecture
      ODA             Open Document Architecture
      ODAC            Operations Distribution Administration Center
      ODAPI           Open Database Application Programming Interface
      ODB             Observational Data Base
      ODB             Observational Database
      ODBC            Open Database Connectivity
      ODBMS           Object-Oriented Database Management System
      ODC             Oxygen Dissociation Curve
      ODD             Office-Dependent Data
      ODD             Operator Distance-Dialing
      ODE             Online Data Entry
      ODE             Ordinary Differential Equation
      ODERACS         Orbital Debris Radar Calibration Spheres Project
      ODI             Open Data Interface
      ODI             Open Data-Link Interface
      ODI             Open Device Interconnect
      ODI             Operator Data Input
      ODIF            Office Document Interchange Format
      ODIF            Office Document Interface Format
      ODIF            Open Document Interchange Format
      ODP             Open Distributed Processing
      ODS             Office Dialog System
      ODS             Open Data Services
      ODS             Overhead Data Stream
      ODT             Online Debugging Technique
      OE              Over-Run Error
      OEIC            Ocean Engineering Information Center
      OEL             Occupational Exposure Limit
      OEM             Original Equipment Manufacturer
      OEO             Office of Economic Opportunity
      OERI            Office of Educational Research and Improvement
      OES             Office of Engineering Services
      OETAS           Office of Education and Training for Addiction Services
      OETT            Oral Endotracheal Tube
      OEX             Orbiter Experiments
      OF              Overflow
      OF              Overflow Flag
      OFB             Output Feedback
      OFC             Office
      OFF             Office
      OFM             Optimized Fingertip Mapping
      OFMT            Output Format for Numbers
      OFS             Output Field Separator
      OGE             Office of Government Ethics
      OGICSE          Oregon Graduate Institute Computer Science and Engineering
      OGO             Orbiting Geophysical Observatories
      OGTT            Oral Glucose Tolerance Test
      OGVT            Outgoing Verification Trunk
      OH              Off-Hook
      OI              Operating Instructions
      OI              Opportunistic Infection
      OIC             Oh, I See
      OIC             Opportunity Industrialization Center
      OIDL            Object Interface Definition Language
      OIF             Oil Immersion Field
      OIG             Office of the Inspector General
      OIM             Oxygen Interaction with Materials
      OIRA            Office of Information and Regulatory Affairs
      OIRM            Office of Information Resources Management
      OIS             Office Information Systems
      OIU             Office Interface Unit
      OJT             On-the-Job Training
      OL              Online
      OL              Open-Label
      OLAP            On-Line Analytical Processing
      OLC             Online Computer
      OLD             Old File Version
      OLE             Object Linking and Embedding
      OLIS            Oxford Library Information System
      OLIS            Oxford University Library Information System
      OLIS            The Oxford Library Information System
      OLIT            Open Look Interface Toolkit
      OLLI            Online Library Information
      OLM             Online Monitor
      OLMSA           Office of Life and Microgravity Sciences and Applications
      OLPS            Online Programming System
      OLRT            Online Real-Time
      OLS             Online Library System
      OLTEP           Online Test Executive Program
      OLTP            Online Transaction Processing
      OLTP            Online Terminal Processing
      OLWM            OpenLook Window Manager
      OM              Object Manager
      OM              Office Management
      OM              Operations Maintenance
      OMB             Office of Management and Budget
      OMDP            Orbiter Maintenance Down Period
      OME             Oregon Microcomputer Engineering
      OMF             Object Management Facilty
      OMF             Object Module Format
      OMFS            Oral and Maxillofacial Surgery
      OMG             Object Management Group
      OMI             Open Messaging Interface
      OMIM            Online Mendelian Inheritance in Man
      OMR             Optical Mark Reader
      OMR             Optical Mark Recognition
      OMS             Office Management System
      OMS             Office of Mobile Sources
      OMS             Orbital Maneuvering System
      OMV             Orbital Maneuvering Vehicle
      ONA             Open Network Architecture
      ONAC            Operations Network Administration Center
      ONAL            Off-Network Access Line
      ONC             Open-Network Computing
      ONI             Operator Number Identification
      ONMS            Open-Network Management System
      ONR             Office of Naval Research
      OOA             Object-Oriented Analysis
      OOD             Object-Oriented Design
      OOD             Office of Development
      OODB            Object-Oriented Database
      OODBMS          Object-Oriented Database Management System
      OODMS           Object-Oriented Database Management System
      OOF             Office of The Future
      OOL             Object-Oriented Language
      OOM             Object-Oriented Methodology
      OOP             Object-Oriented Programming
      OOP             Office of Orphan Products
      OOPL            Object-Oriented Programming Language
      OOPS            Object-Oriented Program Support
      OOPS            Object-Oriented Programming and Systems
      OOS             Object-Oriented Systems
      OOS             Out-of-Sequence
      OOT             Object-Oriented Technology
      OP              Office Products
      OP              Operation
      OP              Operator
      OP              Out-of-Print
      OP              Output
      OPA             Organ Procurement Agencies
      OPAC            Online Public Access Catalog
      OPC             Operations Planning and Control
      OPC             Overall Performance Category
      OPD             Operand
      OPD             Outpatient Department
      OPDU            Operation Protocol Data Units
      OPE             Opiate-induced Pulmonary Edema
      OPEN            Open Protocol Enhanced Networks
      OPM             Office of Personnel Management
      OPM             Operations-Per-Minute
      OPM             Operator Programming Method
      OPN             Open
      OPND            Operand
      OPPE            Office of Program Planning and Evaluation
      OPS             Operations
      OPT             Open Protocol Technology
      OPT             Optical
      OPT             Options File
      OPTN            Organ Procurement and Transplantation Network
      OPUS            Octal Program Updating System
      OPV             Oral Polio Vaccine
      OPV             Out-Patient Visit
      OPX             Off-Premises Extension
      OR              Odds Ratio
      OR              Operational Research
      OR              Optical Reader
      OR              Originating Register
      ORB             Office Repeater Bay
      ORC             Objective Review Committee
      ORCA            Online Resource Control Aid
      ORCA            Open Repository CASE Architecture
      ORCID           Online Retrieval of Cartographic Data
      ORD             Office of Research and Demonstration
      ORDL            Organized Design for Line and Crew
      ORG             Non-Profit Organization in Domain Name System
      ORG             Origin
      ORI             Office of Research Integrity
      ORI             Original File
      ORIG            Origination
      ORM             Optical Remote-Module
      ORNL            Oak Ridge National Laboratory
      ORS             Output Record Separator
      ORS             Orbiter Refueling System
      ORT             Ongoing Reliability Test
      OS              Open-Study Protocol
      OS              Operating System
      OS              Operator Service
      OSA             Office Systems Administrator
      OSA             Open Systems Architecture
      OSAC            Operator Services Assistance Center
      OSAK            Open Systems Application Kernel
      OSAM            Overflow Sequential Access Method
      OSAR            Optical Storage and Retrieval
      OSC             Office of Space Communications
      OSC             Ohio Supercomputer Center
      OSC             Operator Services Center
      OSDS            Operating System for Distributed Switching
      OSDIT           Office of Software Development and Information Technology
      OSF             Office of Space Flight
      OSF             Office Systems Family
      OSF             Open Software Foundation
      OSHA            Occupational Safety and Health
      OSI             Office of Scientific Integrity
      OSI             Open Systems Interconnection
      OSIS            Open Shops For Information Services
      OSL             On-Site Laboratory
      OSL             Orbiting Solar Laboratory
      OSM             Optical Storage Manager
      OSME            Open Systems Message Exchange
      OSN             Office Systems Node
      OSN             Open Systems Network
      OSO             Originating Signaling Office
      OSPF            Open Shortest Path First
      OSQL            Object-Structured Query Language
      OSR             Optical Scanning Recognition
      OSS             Observation Support System
      OSS             Office of Space Science
      OSS             Operations Support System
      OSS             Operator Service System
      OSTA            Office of Space and Terrestrial Applications
      OSTP            Office of Science and Technology Policy
      OSWER           Office of Solid Waste and Emergency Response
      OSWS            Operating System Work Station
      OT              Object Technology
      OT              Occupational Therapy
      OT              Overtime
      OTA             Office of Technology Assessment
      OTA             Optical Telescope Assembly
      OTA             Oxford Text Archive
      OTC             Office Technology Center
      OTC             Operating Telephone Company
      OTC             Output Technology Corporation
      OTEC            Ocean Thermal Energy Conversion
      OTF             Open Token Foundation
      OTM             On-Time Marker
      OTOH            On The Other Hand
      OTP             One-Time Programmable
      OTP             Order Transaction Processing
      OTP             Organ Transplant Patient
      OTR             Operational Trouble Report
      OTS             Office of Thrift Supervision
      OTS             Office Telesystem
      OTS             Off-The-Shelf
      OTT             Office of Technology Transfer
      OUO             Official Use Only
      OURS            Open Users Recommended Solutions
      OUT             Outlines File
      OUT             Output
      OUT             Output To Port
      OUTWATS         Outward Wide Area Telephone Service
      OV              Orbital Verification
      OVA             Ovalbumin
      OVL             Program Overlay File
      OVR             Program Overlay File
      OVX             Ovariectomized
      OW              Overwrite
      OW/T            Office Workers and Teachers
      OWL             Object Windows Library
      OWL             Open Windows Library
      OXT             Oxytocin
      P               Packed
      P               Parallel
      P               Parity
      P               Power
      PA              Paper Advance
      PA              Power Alarm
      PA              Power Amplifier
      PA              Program Access
      PA              Program Address
      PA              Program Analysis
      PA              Public Address
      PAA             Phosphonoacetic Acid
      PAB             Newfoundland Periodical Article Bibliography
      PABX            Private Automated Branch Exchange
      PAC             Premature Atrial Contraction
      PACE            Program for Arrangement of Cables and Equipment
      PACER           Public Access to Court Electronic Records
      PACS            Picture Archiving and Communications Systems
      PACS            Public-Access Computing Systems
      PACSR           Public-Access Computer Systems Review
      PACT            Pay Actual Computer Time
      PACT            Prefix Access Code Translator
      PACT            Production Analyses Control Technique
      PACX            Private Automatic Computer Exchange
      PAD             Packet Assembler and Disassembler
      PAD             Public Access Device
      PAFA            Partners for AIDS-Free America
      PAHO            Pan-American Health Organization
      PAK             Packed File
      PAL             Paradox Applications Language
      PAL             Phase Alternate Line
      PAL             Programmable Array Logic
      PALS            Pediatric Advanced Life Support
      PAM             Payload Assist Module
      PAM             Personal Accounting Management
      PAM             Pulse Amplitude Modulation
      PAMBU           Pacific Manuscripts Bureau
      PAML            Publicly Accessible Mailing Lists
      PAN             Panel
      PANIX           Public Access Internet/Unix System
      PAP             Papanicolaou Test
      PAP             Peroxidase Anti-Peroxidase
      PAP             Primary Atypical Pneumonia
      PAP             Printer Access Protocol
      PAP             Prostate Acid Phosphatase
      PAR             Parameter
      PAR             Project Authorization Request
      PARA            Paragraph
      PARC            Palo Alto Research Center
      PARE            Physiological and Anatomical Rodent Experiment
      PARM            Parameter
      PAS             Pascal Source Code File
      PAS             Personal Accounting System
      PASG            Pneumatic Anti-Shock Garment
      PAT             Paroxysmal Atrial Tachycardia
      PAT             Patch File
      PAT             Printer Action Table
      PAX             Private Automatic Exchange
      PB              Barometric Pressure
      PB              Particle Beam
      PB              Payback Period
      PB              Plug Board
      PBC             Peripheral Bus Computer
      PBD             Pacific Bell Directory
      PBE             Prompt By Example
      PBE             Prompt-By-Example
      PBL             Peripheral Blood Lymphocytes
      PBMC            Peripheral Blood Mononuclear Cell
      PBP             Penicillin-Binding Protein
      PBS             Peripheral Blood Smear
      PBT             Profit Before Tax
      PBX             Personal Branch Exchange
      PBX             Private Branch Exchange
      PBX             Product Branch Exchange
      PC              Paper Change
      PC              Personal Computer
      PC              Placebo-Controlled
      PC              Planetary Camera
      PC              Plug-Compatible
      PC              Positive Control
      PC              Primary Center
      PC              Printed Circuit
      PC              Process Control
      PC              Production Control
      PC              Professional Computer
      PC              Program-Counter
      PC              Punched Card
      PCA             Physical Configuration Audit
      PCB             Printed Circuit Board
      PCB             Process Control Block
      PCC             Portable C Compiler
      PCC             Program-Controlled Computer
      PCCA            Personal Computer Communications Associations
      PCD             Process Control Device
      PCD             Product Category Designation
      PCD             Programmed Cell Death
      PCDA            Program-Controlled Data Acquisition
      PCERT           Purdue Computer Emergency Response Team
      PCF             Physical Control Fields
      PCF             Portable Compiled Font
      PCG             Protein Crystal Growth
      PCI             Peripheral Component Interconnect
      PCI             Protocol Control Information
      PCIS            Portable Common Interface Set
      PCL             Printer Command Language
      PCL             Printer Control Language
      PCL             Process Control Language
      PCL             Programmable Command Language
      PCM             Personal Computer Manufacturer
      PCM             Plug Compatible Machine
      PCM             Plug-Compatible Mainframe
      PCM             Plug-Compatible Manufacturer
      PCM             Printer Command Language
      PCM             Pulse-Code Modulation
      PCM             Pulse-Code-Modulated Trunks
      PCMCIA          Personal Computer Memory Card International Association
      PCMS            Patient Care Monitoring System
      PCN             Penicillin
      PCN             Personal Communication Network
      PCN             Physician Computer Network
      PCNFS           Personal Computer Network File System
      PCNP            Personal Computer Network Program
      PCO             Polycystic Ovary
      PCO             Procuring Contract Officer
      PCOD            Polycystic Ovarian Disease
      PCP             PC Pursuit
      PCP             Phencyclidine
      PCP             Pneumocystis Carinii Pneumonia
      PCP             Primary Communications Processors
      PCP             Primary Control Program
      PCPC            Personal Computers Peripheral Corporation
      PCR             Polymerase Chain Reaction
      PCR             Program Control Register
      PCS             Personal Communication Services
      PCS             Personal Computer System
      PCS             Pointing Control System
      PCS             Process Control Systems
      PCS             Program Control Sheet
      PCS             Programmable Communications Subsystem
      PCS             Promotion of Chemical Safety
      PCS             Punched Card System
      PCSA            Personal Computer Systems Architecture
      PCSG            Personal Computing Systems Group
      PCT             Picture File
      PCTE            Portable Common Tool Environment
      PCX             Picture File
      PD              Peripheral Decoder
      PD              Pointing Device
      PD              Program Director
      PD              Public Domain
      PDA             Patent Ductus Arteriosus
      PDA             Personal Digital Assistant
      PDA             Pointing Device Adapter
      PDA             Problem Determination Aid
      PDA             Pushdown Automation
      PDB             Protein Data Bank
      PDD             Pervasive Development Disorder
      PDE             Partial Differential Equation
      PDES            Product Data Exchange Specification
      PDF             Portable Document Format
      PDF             Printer Description File
      PDF             Printer Driver File
      PDF             Problem Determination Facility
      PDF             Program Development Facility
      PDI             Picture Description Instructions
      PDI             Power and Data Interface
      PDL             Page Description Language
      PDL             Procedure Definition Language
      PDL             Program Description Language
      PDL             Program Design Language
      PDL             Program Development Language
      PDLL            Poorly Differentiated Lymphocytic Lymphoma
      PDM             Product Data Manager
      PDMS            Patient Data Management Systems
      PDN             Public Data Network
      PDP             Parallel Distributed Processing
      PDP             Peripheral Data Processing
      PDP             Plasma Display Panel
      PDP             Procurement Data Package
      PDP             Progammable Data Processor
      PDQ             Physician Data Query
      PDQ             Prescreening Developmental Questionnaire
      PDR             Physician's Desk Reference
      PDR             Preliminary Data Report
      PDR             Proliferative Diabetic Retinopathy
      PDRS            Payload Deployment and Retrieval System
      PDS             Partitioned Data Set
      PDS             Personal Data System
      PDS             Personal Decision Series
      PDS             Planetary Data System
      PDS             Portable Display Shell
      PDS             Premises Distribution System
      PDS             Problem Descriptor System
      PDS             Professional Development Seminar
      PDS             Program Development System
      PDS             Public Domain Software
      PDSP            Peripheral Data Storage Processor
      PDSS            Post Development and Software Support
      PDT             Photodynamic Therapy
      PDU             Parenteral Drug User
      PDU             Product Development Unit
      PDU             Protocol Data Unit
      PDW             Platelet Distribution Width
      PDX             Paradox File
      PE              Parity Error
      PE              Peripheral Equipment
      PE              Phase-Encoded
      PE              Professional Engineer
      PE              Project Engineer
      PEA             Pocket Ethernet Adapter
      PEARL           Process and Experimental Application Realtime Language
      PECC            Product Engineering Control Center
      PECT            Positron Emission Computed Tomography
      PEER            Project Engineer Evaluation Report
      PEGASUS         Personal Guide to ASU Stuff
      PEH             Promotion of Environmental Health
      PEL             Permissable Exposure Limits
      PEL             Picture Element
      PEM             Photoelectromagnetic
      PEM             Privacy Enhanced Mail
      PEM             Protein-Energy Malnutrition
      PEM             Proton-Exchange Membrane
      PEN             Parity Enable
      PEN             Public Education Network
      PEN             Purchasing Electronic Notebook
      PENSDK          Pen Computing Software Development Kit
      PEP             Packetized Ensemble Protocol
      PEP             Partitioned Emulation Programming
      PEP             Pre-Ejection Period
      PEP             Productivity Enhancement Project
      PER             Program Event Recording
      PERF            Performance
      PERL            Practical Extraction and Report Language
      PERT            Product-Enhanced Reverse Transcriptase
      PERT            Program Evaluation and Review Technique
      PES             Photo-Electric Scanning
      PES             Programmed Electrical Stimulation
      PEST            Parameter Estimation by Sequential Testing
      PET             Personal Electronic Translator
      PET             Positron Emission Tomography
      PET             Print Enhancement Technology
      PETA            People for the Ethical Treatment of Animals
      PF              Page Formatter
      PF              Parity Flag
      PF              Power Factor
      PF              Program Function
      PFA             Phosphonoformic Acid
      PFC             Plasma Fusion Center
      PFF             Pluto Fast Flyby
      PFK             Program Function Key
      PFM             Printer Font Metrics
      PFM             Pulse Frequency Modulation
      PFR             Power-Fail-Recovery
      PFR             Power-Fail-Restart
      PFS             Primary Fibromyalgia Syndrome
      PFT             Pulmonary Function Test
      PFTA            Payload Flight Test Article
      pg              Picogram
      PGA             Pin Grid Array
      PGC             Professional Graphics Controller
      PGDN            Page Down
      PGF             Presentation Graphics Facility
      PGFNA           Prince George Free-Net Association
      PGI             Postgraduate Institute
      PGL             Graphics File
      PGL             Persistent Generalized Lymphadenopathy
      PGM             Program
      PGP             Program Parameter File
      PGS             Program Generation System
      PGS             Pseudoglobal Search
      PGUP            Page Up
      PH              Phase
      PH              Proportional Hazards
      PHA             Phytohemagglutinin
      PHE             Phenylalanine
      PHIGS           Programmer's Hierarchical Interactive Graphics System
      PHLIS           Public Health Laboratory Information System
      PHO             Phone List File
      PHPPO           Public Health Practice Program Office
      PHR             Physicians for Human Rights
      PHS             Public Health Service
      PHSIS           Public Health System Impact Statement
      PHT             Phenytoin
      PHT             Phototube
      PHUN            Phreakers and Hackers Underground Network
      PKCS            Public Key Cryptography Standards
      PKP             Public Key Partners
      PI              Performance Index
      PI              Profitability Index
      PI              Program Interruption
      PI              Programmed Instruction
      PI              Proportional Integral
      PIA             Peripheral Interface Adapter
      PIA             Plug-In Administrator
      PIC             Primary Independent Carrier
      PIC             Priority Interrupt Controller
      PICU            Pediatric Intensive Care Unit
      PICU            Priority Interrupt Control Unit
      PID             Pelvic Inflammatory Disease
      PID             Process Identification Number
      PID             Proprietary Information Disclosure
      PIF             Paid-In-Full
      PIF             Program Information File
      PIF             Proliferation Inhibitory Factor
      PIG             Psion Interest Group
      PIH             Pregnancy-Induced Hypertension
      PILOT           Programmed Inquiry Learning Or Teaching
      PIM             Personal Information Manager
      PIM             Protocol Independent Multicast
      PIMS            Project Information Management System
      PIN             Personal Identification Number
      PIN             Police Information Network
      PIN             Policy Information Notice
      PIN             Processor Independent NetWare
      PINET           Physicians Information Network
      PING            Packet Internet Gopher
      PINS            Person in Need of Services
      PIO             Public Information Office
      PIP             Paper Impact Printing
      PIP             Periphal Interchange Program
      PIP             Peripheral Interchange Program
      PIP             Programmable Integrated Processor
      PIPE            Persistent Interstitial Pulmonary Emphysema
      PIPS            Pattern Information Processing Systems
      PIR             Protein Information Resource
      PISW            Process Interrupt Status Word
      PIT             Plasma Iron Turnover
      PIT             Programmable Interval Timer
      PIU             Path Information Unit
      PIU             Plug-In Unit
      PIWG            Performance Issues Working Group
      PIXEL           Picture Element
      PK              Packed Font File
      PKD             Packed
      PKU             Phenyketonuria
      PL              Programmable Logic
      PL              Programming Language
      PL              Programming Library
      PL/1            Programming Language One
      PLA             Program Logic Array
      PLA             Programmable Logic Array
      PLAD            Public Lands Appreciation Day
      PLAN            Public Lands Action Network
      PLC             Payload Commander
      PLC             Placebo
      PLC             Power Line Conditioner
      PLC             Programmable Logic Controller
      PLCC            Plastic Leadless Chip Carrier
      PLD             Programmable Logic Device
      PLDM            Power Line Disturbance Monitor
      PLDS            Pilot Land Data System
      PLL             Phase-Locked Loop
      PLL             Prelinked Library File
      PLM             Pulse Length Modulation
      PLP             Party Line Protocol
      PLP             Presentation Level Protocol
      PLS             Programmable Logic Sequencer
      PLS             Prolonged Life Support
      PLT             Pilot
      PLT             Platelet Count
      PLT             Program Library Tape
      PM              Peripheral Module
      PM              Phase Modulation
      PM              Polymer Morphology
      PM              Presentation Manager
      PM              Preventive Maintenance
      PM              Procedures Manual
      PM&R            Physical Medicine and Rehabilition
      PMAC            Peripheral Module Access Controller
      PMC             Patient-Management Categories
      PMC             Permanently Manned Capability
      PMC             Pseudo-Machine Code
      PMC             Pseudo-Membranous Colitis
      PMD             Progressive Muscular Dystrophy
      PMF             Protein-Modified Fast
      PMH             Past Medical History
      PMI             Picture Manipulation Instructions
      PMI             Point of Maximum Impulse
      PMI             Private Memory Interconnect
      PMIC            Practice Management Information Corporation
      PMJI            Pardon Me For Jumping In
      PML             Progressive Multifocal Leukoencephalopathy
      PMMU            Paged Memory Management Unit
      PMN             Polymorphonuclear Leukocyte
      pmol            Picomole
      PMOS            Positive Channel Metal-Oxide Semiconductor
      PMOS            Positive Metal-Oxide Semiconductor
      PMP             Previous Menstrual Period
      PMR             Poor Man's Routing
      PMS             Pantone Matching System
      PMS             Personal Mailing System
      PMS             Premenstrual Syndrome
      PMS             Processor Memory Switch
      PMS             Project Management System
      PMS             Public Message System
      PMT             Page Map Table
      PMT             Photomultiplier Tube
      PMTS            Premenstrual Tension Syndrome
      PMU             Precision Measurement Unit
      PMX             Packet Multiplexer
      PNB             Pacific Northwest Bell
      PND             Present Next Digit
      PND             Principle Neutralizing Determinant
      PNET            Power Networking
      PNL             Pacific Northwest Lab
      PNN             Princeton News Network
      PNP             Nonprotein Nitrogen
      PNP             Plug-and-Play
      PNX             Private Network Exchange
      PO              Phone Order
      PO              Post Office
      PO              Purchase Order
      POACH           PC-On-A-Chip
      POB             Peripheral Order Buffer
      POC             Point-of-Contact
      POCC            Payload Operations Control Center
      POD             Post-Op Day
      PODPS           Post-Observation Data Processing System
      POE             Portal of Entry
      POF             Plastic Optical Fiber
      POF             Probability of Failure
      POF             Programming Operator Facility
      POGO            Programmer-Oriented Graphics Operation
      POH             Power-On Hours
      POISED          Process for Organization of Internet Standards
      POL             Problem-Oriented Language
      POL             Procedure-Oriented Language
      POL             Process-Oriented Language
      POLE            Point-of-Last-Environment
      POM             Point of Manufacturing
      POMR            Problem-Oriented Medical Record
      POMS            Profile of Mood States
      POP             Point-of-Presence
      POP             Pop Value Off Stack
      POP             Post-Office Protocol
      POPA            Pop All General Registers
      POPF            Pop Stack Into Flags
      POPS            Paperless Order Processing System
      POPS            Pulmonary Overpressurization Syndrome
      POR             Problem Oriented Record
      PORT            Patient-Outcome Research Team
      PORT            Photo-Optical Recorder Tracker
      POS             Point-of-Sale
      POS             Position
      POS             Positive
      POS             Primary Operating System
      POS             Programmable Object Select
      POS             Programmable Option Select
      POSIX           Portable Operating System Interface Unix
      POST            Power-On Self Test
      POT             Physical Organization Table
      POT             Point of Termination
      POV             Point of View
      POV             Program Oriented View
      PP              Pages
      PP              Peripheral Processor
      PP              Persistently Positive
      PP              Positive Pressure
      PP              Pre-Processor
      PPA             Phenylpropanolamine
      PPAC            Public Policy Advisory Committee
      PPB             Parts-Per-Billion
      PPB             Provisioning Parts Breakdown
      PPC             Personal Portable Computer
      PPD             Peripheral Pulse Distributor
      PPD             Postscript Printer Description
      PPD             Purified Protein Derivative
      PPDS            Personal Printer Data Stream
      PPI             Parallel Port Interface
      PPI             Patient Package Insert
      PPL             Periodic Payment License
      PPL             Polymorphic Programming Language
      PPL             Preferred Products List
      PPM             Pages-Per-Minute
      PPM             Parts-Per-Million
      PPM             Posterior Papillary Muscle
      PPM             Pulse Position Modulation
      PPM             Pulses-Per-Minute
      PPMS            Professional Productivity Management Sytem
      PPN             Programmer Project Number
      PPN             Project Programmer Number
      PPP             Point-to-Point Protocol
      PPPL            Princeton Plasma Physics Lab
      PPRC            Physician Payment Review Commission
      PPS             Parallel Processing System
      PPS             Post-Polio Syndrome
      PPS             Product Performance Survey
      PPS             Prospective Payment System
      PPS             Public Packet-Switching
      PPS             Public Packet-Switching Network
      PPS             Pulses-Per-Second
      PPSN            Public Packet-Switched Network
      PPSU            Personal Printer Spooling Utility
      PPT             Parts-Per-Trillion
      ppt             Precipitate
      PPT             Punched Paper Tape
      PPU             Peripheral Processing Unit
      PPV             Positive Predictive Value
      PR              Partial Response
      PR              Pattern Recognition
      PR              Physical Records
      PR              Print
      PR              Printer
      PR              Program Reader
      PR              Public Relations
      PRA             Physician Recognition Award
      PRA             Primary Rate Access
      PRACSA          Public Remote-Access Computer Standards Association
      PRB             Peer Review Board
      PRBC            Packed Red Blood Cells
      PRC             Planning Research Corporation
      PRCA            Puerto Rico Communications Authority
      PRD             Printer Driver File
      PRD             Processing Data Rate
      PREPnet         Pennsylvania Research and Economic Partnership
      PREP            Physician Review Program
      PREP            PowerPC Reference Platform
      PRF             Preferences File
      PRG             Program File
      PRI             Primary Rate Interface
      PRIMIR          Product Improvement Management Information Report
      PRISM           Parallel Reduced Instruction Set Multi-processing
      PRISM           Programmed Integrated System Maintenance
      PRIST           Paper Radioimmunosorbent Test
      PRM             Preventive Maintenance
      PRM             Primary
      prn             As Needed
      PRN             Printer
      PRO             Profile File
      PROC            Procedure
      PROC            Processor
      PROFS           Professional Office System
      PROG            Program
      PROLOG          Programming In Logic
      PROM            Premature Rupture of Membranes
      PROM            Programmable Read-Only Memory
      PRP             Partner Referral Program
      PRP             Platelet-Rich Plasma
      PRPQ            Programming Request For Price Quotation
      PRR             Pulse Repetition Rate
      PRS             Pattern-Recognition System
      PRS             Personal Response System
      PRS             Printer File
      PRT             Portable Remote Terminal
      PRT             Print
      PRT             Printer
      PRT             Production Run Tape
      PRT             Program Reference Table
      PRTM            Printing Response Time Monitor
      PRTSC           Print Screen
      PRTY            Priority
      PS              Personal Services
      PS              Physical Sequential
      PS              Picosecond
      PS              Pilot Study
      PS              PostScript File
      PS              Power Supply
      PS              Program Store
      PS              Programmed Symbols
      PS              Proportional Spacing
      PS/2            Programming System 2
      PSA             Personal Statement Analyzer
      PSA             Prostate-Specific Antigen
      PSB             Program Specification Block
      PSC             Pittsburgh Supercomputing Center
      PSC             Primary Sclerosing Cholangitis
      PSC             Prime Service Contractor
      PSC             Public Service Commission
      PSD             Partial Sleep Deprivation
      PSD             Printer Sharing Device
      PSDC            Pennsylvania State Data Center
      PSDN            Packet-Switched Data Network
      PSDN            Public-Switched Data Network
      PSDS            Public-Switched Digital Service
      PSE             Packet Switching Exchange
      PSE             Present State Examination
      PSEC            Picosecond
      PSF             Permanent Swap File
      PSF             Preferred Stride Frequency
      PSG             Professional Specialty Groups
      PSGN            Post-Streptococcal Glomerulonephritis
      PSH             Physical Services Header
      PSI             Packet Switch Interface
      PSI             Pollutants Standard Index
      PSIU            Packet-Switch Interface Unit
      PSK             Phase-Shift Keying
      PSL             Problem Statement Language
      PSM             Packet-Service Module
      PSM             Professional Service Manager
      PSN             Packet-Switch Node
      PSN             Packet-Switched Network
      PSN             People with Special Needs
      PSO             Pending Service Order
      PSP             Program Segment Prefix
      PSPDN           Packet-Switched Public Data Network
      PSR             Paternal Sex Ratio
      PSR             Phase-Shift Register
      PSR             Program Support Representative
      PSRG            Privacy and Security Research Group
      PSRO            Professional Standards Review Organization
      PSRT            Political Scientists Researchers and Teachers
      PSS             Packet Switch Stream
      PSS             Packet Switched Service
      PSS             Progressive Systemic Sclerosis
      PSS             Public Safety System
      PSTN            Public-Switched Telephone Network
      PSU             Primary Sampling Unit
      PSU             Portable Storage Unit
      PSU             Program Storage Unit
      PSVT            Paroxysmal Supraventricular Tachycardia
      PSW             Program Status Word
      PSWM            PostScript Window Manager
      PT              Paper Tape
      PT              Part-Time
      PT              Program Table
      PT              Program Timer
      PT              Publication Type
      PT              Pulmonary Toxoplasmosis
      PT              Punched Tape
      PTA             Peritonsillar Abscess
      PTA             Prior to Admission
      PTAT            Private Trans-Atlantic Telecommunications
      PTCA            Percutaneous Transluminal Coronary Angioplasty
      PTD             Provisioning Technical Documentation
      PTE             Packet Transport Equipment
      PTF             Patient Treatment File
      PTF             Program Temporary Fix
      PTH             Parathyroid Hormone
      PTHC            Percutaneous Transhepatic Cholangiogram
      PTL             Pre-Term Labor
      PTLA            Percutaneous Transluminal Angioplasty
      PTM             Pressure Threshold Meter
      PTN             Phenytoin
      PTN             Plant Test Number
      PTO             Patent and Trademark Office
      PTP             Paper Tape Punch
      PTR             Paper Tape Reader
      PTS             Permanent Threshold Shift
      PTS             Position and Trunk Scanner
      PTSD            Post-Traumatic Stress Disorder
      PTT             Partial Thromboplastin Time
      PTT             Postal Telephone and Telegraph
      PTU             Propylthiouracil
      PTX             Pentoxifylline
      PU              Physical Unit
      PU              Power Unit
      PU              Processing Unit
      PUB             Physical Unit Block
      PUB             Publication
      PUB             Publication File
      PUC             Peripheral Unit Controller
      PUC             Public Utilities Commission
      PUD             Peptic Ulcer Disease
      PUD             Planned Unit Development
      PUFFT           Purdue University Fast Fortran Compiler
      PUMA            Power User's Macintosh Association
      PUMA            Processor Upgradable Modular Architecture
      PUMA            Programmable Universal Micro Accelerator
      PUSH            Push Value Onto Stack
      PUSHF           Push 16-Bit FLAGS Registers
      PUT             Program Update Tape
      PV              Pneumococcal Vaccine
      PV              Present Value
      PVC             Permanent Virtual Circuits
      PVC             Premature Ventricular Contraction
      PVD             Peripheral Vascular Disease
      PVM             Parallel Virtual Machine
      PVN             Private Virtual Network
      PVR             Pulse Volume Recording
      PVS             Partial Ventilatory Support
      PVS             Program Validation Service
      PVT             Paroxysmal Ventricular Tachycardia
      PWB             Printer Wire Board
      PWB             Programmer's Work Bench
      PWC             Physical Working Capacity
      PWI             Power Indicator
      PWL             Percentage of Weight Loss
      PWM             Pulse-Width Modulation
      PWN             Peacenet World News
      PWR             Power
      PWS             Programmer Work Station
      PWSCS           Programmable Workstation Communication Services
      PWV             Pulse-Wave Velocity
      Px              Physical
      PX              Primary Index File
      PX              Prophylaxis
      PXL             Pixel Font File
      PY              Person Years
      PZA             Pyrazinamide
      Q               Quality
      Q               Quantity
      Q               Query
      Q               Question
      QA              Quality Assurance
      QAIP            Quality Assurance Inspection Plan
      QALE            Quality-Adjusted Life Expectancy
      QALM            Quality-Adjusted Life Months
      QALY            Quality-Adjusted Life Years
      QAP             Quality-Assurance Program
      QAPI            Quality-Assurance Program Inspections
      QAPP            Quality-Assurance Program Plan
      QAS             Quasi-Associated Signalling
      QBE             Query By Example
      QBF             Query By Forms
      QBOD            Quality Board of Directors
      QC              Quality Control
      QCB             Queue Control Block
      QCC             Quality Control Circles
      QED             Quick Epicenter Determinations
      QEMM            Quarterdeck Expanded Memory Manager
      QF              Quality Factor
      QFA             Quick File Access
      QIC             Quarter-Inch Cartridge
      QIC             Quarter-Inch Compatability
      QIC             Quarter-Inch-Tape
      QIP             Quality Improvement Process
      QIS             Quality Information System
      QIT             Quality Information and Test System
      QL              Query Language
      QLD             Queuing Literature Database
      QLI             Query Language Interpreter
      QLI             Quality of Live Index
      QMF             Query Management Facility
      QNS             Quantity Not Sufficient
      QoL             Quality of Life
      QPA             Quality Program Analysis
      QPL             Quality Products List
      QPSK            Quartenary Phase Shift Keying
      QQPRI           Qualitative and Quantitative Personell Requirements Information
      QSO             Quasi-Stellar Object
      QSS             Quality Solution Systems
      QT              Quotient
      QTY             Quantity
      QUERRI          Questions on University Extension Regional Resource
      QUEL            Query Language
      QUEX            Query Update By Example
      QUIC            Quarter-Inch-Cartridge
      QUIP            Quad In-Line Package
      QWB             Quality of Well-Being Scale
      R               Read
      R               Reader
      R               Request
      R               Right
      R&D             Research and Development
      R&E             Research and Engineering
      R&T             Research and Technology
      R/W             Read/Write
      RA              Reasonable Alternative
      RA              Research-Assistant
      RA              Return Address
      RA              Return Authorization
      RA              Risk Analysis
      RACE            Random Access Card Equipment
      RACE            Random Access Computer Equipment
      RACF            Resource Access Control Facility
      RAD             Radiation Absorbed Dose
      RAD             Random Access Data
      RAD             Random Access Drive
      RAD             Rapid Access Disk
      RAD             Rapid Application Development
      RAD             Reactive Airways Disease
      RADAR           Radio Detection and Ranging
      RADIUS          Routine Antenatal Diagnostic Imaging with Ultrasound
      RADIUS          Remote Authentication Dial-In User Service
      RAF             Rheumatoid Arthritis Factor
      RAH             Random Access Humor
      RAI             Random Access and Inquiry
      RAID            Redundant Arrays of Inexpensive Drives
      RAIR            Random Access Information Retrieval
      RAIU            Radioactive Iodine Uptake
      RAM             Random Access Memory
      RAMDAC          Random Access Memory Digital-to-Analog Converter
      RAMIS           Rapid Access Management Information System
      RAMP            Remote Access Maintenance Protocol
      RAMPS           Resource Allocation in Multiple Project Schedule
      RAMS            Record Archival Management System
      RAND            Random
      RAND            Rural Area Network Design
      RAO             Regional Accounting Office
      RAO             Revenue Accounting Office
      RAP             Remote Access Point
      RAPD            Randomly Amplified Polymorphic DNA
      RAPID           Research Activity and Publications Interactions Database
      RAPID           Resource and Performance Interactive Display System
      RARE            Reseaux Associes pour la Recherche Europeenne
      RARP            Reverse Address Resolution Protocol
      RAS             Random-Access Storage
      RAS             Reliability
      RAS             Remote Access Server
      RAS             Remote Access System
      RAS             Resource Analysis System
      RAS             Row Address Strobe
      RASC            Residence Account Service Center
      RAST            Radioallergosorbent Test
      RAT             Resource Allocation Tool
      RATS            Radio-Amateur Telecommunications Society
      RAVE            Relational Advanced Visual Environment
      RBA             Relative Byte Address
      RBBS            Remote Bulletin Board System
      RBC             Red Blood Cell
      RBC             Red Blood Count
      RBG             Realtime Business Group
      RBHC            Regional Bell Holding Company
      RBMS            Remote Bridge Management Software
      RBOC            Regional Bell Operating Company
      RC              Radio-Controlled
      RC              Radix Complement
      RC              Recent Change
      RC              Reduced Cost
      RC              Regional Center
      RC              Repair Center
      RC              Research Coordinator
      RC              Resistance-Capacitance
      RC              Resistance-Coupled
      RC              Resistor-Capacitor
      RCAS            Reserve Component Automation System
      RCC             Radio Common Carrier
      RCC             Regional Coordinating Center
      RCC             Remote Cluster Controller
      RCD             Receiver-Carrier Detector
      RCF             Remote Call-Forwarding
      RCI             Resource Critical Information
      RCL             Rotate Through Carry Left
      RCL             Rotate-Carry-Left
      RCL             Runtime Control Library
      RCLDN           Retrieval of Calling-Line Directory
      RCM             Recent Change Memory Administration Center
      RCM             Remote Carrier Module
      RCN             Regents Computer Network
      RCP             Remote Copy Program
      RCR             Rotate Through Carry Right
      RCS             Records Communications Switching System
      RCS             Reloadable Control Storage
      RCS             Revision Control System
      RCSC            Remote Spooling Communications Subsystem
      RCT             Randomized Clinical Trial
      RCT             Randomized Control Trials
      RCTL            Resistor-Capacitor-Transistor Logic
      RCVR            Receiver
      RD              Rate Difference
      RD              Read
      RD              Receive Data
      RD              Remove Directory
      RDA             Recommended Daily Allowance
      RDA             Recommended Dietary Allowance
      RDA             Remote Database Access
      RDB             Receive Data Buffer
      RDB             Relational Database
      RDBMS           Relational Database Mangement System
      RDC             Remote Data Connector
      RDD             Random Digital Dial
      RDE             Received Data Enable
      RDE             Receptor Destroying Enzyme
      RDES            Remote Data Entry System
      RDF             Radio Direction-Finding
      RDF             Record Definition Field
      RDL             Remote Digital Loopback
      RDM             Relational Data Modeler
      RDN             Relative Distinguished Name
      RDP             Ribosomal Database Project
       RDR             Reader
      RDS             Radio Digital System
      RDS             Respiratory Distress Syndrome
      RDSN            Region Digital Switched Network
      RDT             Remote Digital Terminal
      RDT             Restricted Data Transmissions
      RDW             Red Cell Distribution Width
      RDY             Ready
      REACH           Research and Educational Applications of Computers in the Humanities
      REAP            Restriction Endonuclease Analysis of Plasmid DNA
      REBASE          Restriction Enzyme Database
      REC             Record
      REC             Recorder File
      REC             Regional Engineering Center
      RED             Reduction
      REE             Rare Earth Elements
      REE             Resting Energy Expenditure
      REF             Reference
      REF             Reference File
      REG             Register
      REGIS           Remote Graphics Instruction Set
      REL             Recommended Occupational Exposure Limit
      REL             Release
      REL             Relocatable
      REM             Rapid Eye Movement
      REM             Remainder
      REM             Remark
      REM             Remote Equipment Module
      REM             Ring Error Monitor
      REMIS           Real Estate Management Information System
      REMOS           Resources Management On-Line System
      REN             Remote Enable
      REN             Rename
      REP             Repeat
      REP             Repeat String Prefix
      REPE            Repeat-While-Equal
      REPNE           Repeat-While-Not-Equal
      REPNZ           Repeat-While-Not-Zero
      REPZ            Repeat-While-Zero
      REQ             Request
      RER             Respiratory Exchange Ratio
      RER             Rough Endoplasmic Reticulum
      RES             Remote Entry Services
      RES             Reset
      RES             Resource File
      RES             Reticuloendothelial System
      RET             Near Return From Procedure
      RET             Resolution Enhancement Technology
      RET             Return
      RETF            Far Return From Procedure
      REW             Rewind
      REXX            Restructured Extended Executor
      RF              Radio-Frequency
      RF              Revisable Form
      RFA             Request for Assistance
      RFC             Request-For-Comments
      RFD             Ready-For-Data
      RFE             Request For Enhancement
      RFF             Resources For the Future
      RFI             Radio-Frequency Interference
      RFI             Renal Failure Index
      RFI             Request-For-Information
      RFLP            Restriction Fragment Length Polymorphism
      RFMS            Remote File Management System
      RFP             Request-For-Proposal
      RFQ             Request-For-Quote
      RFS             Relapse-Free Survival
      RFS             Remote File Sharing
      RFS             Remote File System
      RFT             Request-For-Technology
      RFT             Revisable Form Text
      RFW             Rapid Filling Wave
      RGA             Rate Gyro Assembly
      RGB             Red-Green-Blue
      RGMO            Regional Grants Management Officer
      RGP             Raster Graphics Processor
      RGP             Remote Graphics Processor
      RH              Relative Hazard
      RH              Report Heading
      RH              Request Header
      RHD             Rheumatic Heart Disease
      RI              Read In
      RI              Relative Incidence
      RI              Reliability Index
      RI              Ring Indicator
      RIA             Radioimmunoassay
      RIACS           Research Institute for Advanced Computer Science
      RID             Radial Immunodiffusion
      RID             Remote Isolation Device
      RIE             Resources in Education
      RIF             Reduction-In-Force
      RIF             Rifampin
      RIFF            Resource Interchange File Format
      RIG             Rabies Immune Globulin
      RIGS            Radioimmunoguided Surgery
      RIM             Read-In Mode
      RIM             Remote Installation and Maintenance
      RIME            RelayNet International Message Exchange
      RIP             Raster Image Processor
      RIP             Remote Imaging Protocol
      RIP             Routing Image Protocol
      RIP             Routing Information Protocol
      RIPA            Radioimmunoprecipitation
      RIPE            Reseaux IP Europeen
      RIPS            Raster Image Processing Systems Corp
      RIS             Radiological Information Systems
      RIS             Remote Installation Service
      RISC            Reduced Instruction Set Computer
      RISD            Reference Information Systems Development
      RISLU           Remote Integrated Services Line Unit
      RIST            Radioimmunosorbent Test
      RITA            Recognition of Information Technology Achievement
      RITSEC          Regional Information Technology and Software Engineering Center
      RJE             Remote Job-Entry
      RJEF            Remote Job Entry Function
      RJP             Remote Job-Processing
      RL              Relocation Library
      RLC             Repeater Line Card
      RLD             Relocation Dictionary
      RLE             Run-Length-Encoded
      RLF             Retrolental Fibroplasia
      RLG             Research Libraries Group
      RLIN            Research Libraries Information Network
      RLL             Run-Length-Limited
      RLN             Remote Lan Nodes
      RLS             Received-Line Detect
      RLSD            Received Line Signal Detector
      RLT             Remote Line Test
      RM              Record Mark
      RM              Records Management
      RM              Regional Manager
      RM              Repetition Maximum
      RM              Resource Manager
      RMAS            Remote Memory Administration System
      RMATS           Remote Maintenance Administration and Traffic
      RME             Resting Metabolic Expenditure
      RMF             Read Me First
      RMI             Resource Management Initiative
      RMON            Remote Monitoring
      RMP             Regional Medical Programs
      RMP             Rifampin
      RMR             Remote Message Registers
      RMS             Record Management Services
      RMS             Recovery Management Support
      RMS             Remote Manipulator System
      RMS             Root Mean Squared
      RMSF            Rocky Mountain Spotted Fever
      RMT             Remote
      Rn              Radon
      RN              Reference Noise
      RNA             Radionuclide Angiography
      RNA             Ribonucleic Acid
      RND             Random
      RNOC            Regional Network Operations Center
      RNP             Ribonucleoprotein
      RO              Read-Only
      RO              Regional Office
      RO              Routine Order
      ROA             Return-On-Assets
      ROB             Remote Order Buffer
      ROC             Receiver Operator Characteristic
      ROC             Regional Operating Company
      RODAC           Replicate Organism Detection And Counting
      ROFL            Rolling On Floor Laughing
      ROI             Oxygen Radicals and Intermediates
      ROI             Region-of-Interest
      ROI             Release-of-Information
      ROI             Return-On-Investment
      ROL             Rotate Left
      ROLC            Routing Over Large Clouds
      ROM             Range-of-Motion
      ROM             Read-Only Memory
      ROM-BIOS        Read-Only Memory/Basic Input Output System
      ROP             Read-Only Printer
      ROR             Rotate Right
      ROS             Reactive Oxygen Species
      ROS             Read-Only Storage
      ROS             Review of Symptoms
      ROS             Review of Systems
      ROSC            Return of Spontaneous Circulation
      ROSE            Remote Operations Service Element
      ROTL            Remote Office Test Lines
      RPC             Remote Procedure Call
      RPE             Rating of Perceived Exertion
      RPE             Remote Peripheral Equipment
      RPE             Required Page-End Character
      RPG             Report Program Generator
      RPG             Role-Playing Game
      RPL             Remote Program Loader
      RPL             Requested Privilege Level
      RPL             Resident Programming Language
      RPM             Remote Process Management
      RPM             Revolutions Per Minute
      RPN             Reverse Polish Notation
      RPO             Railway Post Office
      RPOA            Recognized Private Operating Agencies
      RPP             Rate-Pressure Product
      RPR             Rapid Plasma Reagin
      RPS             Realtime Programming System
      RPS             Rotational Position Sensing
      RPS             Revolutions Per Second
      RPT             Registered Physical Therapist
      RPT             Repeat
      RPT             Report
      RQBE            Relational Query By Example
      RQSM            Regional Quality Service Management
      RR              Relative Risk
      RR              Remove and Replace
      RR              Resource Record
      RRC             Residency Review Committee
      RRDS            Relative Record Data Set
      RRE             Rev Responsive Element
      RRG             Real-Time Rapporteur Group
      rRNA            Ribosomal Ribonucleic Acid
      RRO             Reports Receiving Office
      RRR             Regular Rate And Rhythm
      RRR             Repeat Reactor Rates
      RS              Recommended Standard
      RS              Remote Station
      RS              Reset
      RS              Reset Key
      RS232           Digital Communication Standard
      RSA             Reference System Architecture
      RSA             Rehabilitation Services Administration
      RSA             Repair Service Attendant
      RSAT            Reliability and System Architecture Testing
      RSB             Repair Service Bureau
      RSBS            Research School of Biological Sciences
      RSC             Remote Switching Center
      RSC             Residence Service Center
      RSC             Routine Service Cost
      rsCD4           Recombinant Soluble CD4
      RSCS            Remote Source Control System
      RSCS            Remote Spooling and Communication Subsystem
      RSD             Reflex Sympathetic Dystrophy
      RSD             Regular Section Descriptors
      RSDS            Reflex Sympathetic Dystrophy Syndrome
      RSE             Removable Storage Elements
      RSE             Research and Systems Engineering
      RSF             Remote Support Facility
      RSH             Remote Shell
      RSL             Requirements Specifications Language
      RSLM            Remote Subscriber Line Module
      RSM             Remote-Switching-Module
      RSN             Real Soon Now
      RSP             Remote Switching Partition
      RSP             Required Space Character
      RSS             Remote Speaking System
      RSS             Remote Switching System
      RSS             Resource Security System
      RSTS            Resource System Time-Sharing
      RSU             Remote-Switching-Unit
      RSV             Respiratory Syncytial Virus
      RSV             Revised Standard Edition
      RSVP            Resource Reservation Protocol
      RT              Radiation Therapy
      RT              Read Tape
      RT              Real-Time
      RT              Register Transfer
      RT              Remote Terminal
      RT              Reverse Transcriptase
      RT              RISC Technology
      RT              Run Time
      RTA             Real-Time Accelerator
      RTA             Remote Trunk Arrangement
      RTAC            Regional Technical Assistance Center
      RTAM            Remote Teleprocessing Access Method
      RTB             Read Tape Binary
      RTBM            Real-Time Bit Mapping
      RTC             Real-Time Clock
      RTC             Real-Time Command
      RTC             Relative Time Clock
      RTC             Return To Clinic
      RTCC            Real-Time Computer Complex
      RTCF            Real-Time Computer Facility
      RTCS            Real-Time Computer System
      RTCU            Real-Time Control Unit
      RTD             Real-Time Display
      RTDHS           Real-Time Data Handling System
      RTE             Real-Time Execution
      RTE             Remote Terminal Emulation
      RTECS           Registry of Toxic Effects of Chemical Substances
      RTEL            Reverse Telnet
      RTF             Radio Television Film
      RTF             Resistance Transfer Factor
      RTF             Rich Text Format
      RTFM            Read the Flaming Manual
      RTG             Research Training Group
      RTG             Routing Table Generator
      RTL             Real-Time Language
      RTL             Resistor-Transistor Logic
      RTM             Read the Manual
      RTM             Real-Time Monitor
      RTM             Regional Telecommunications Management
      RTM             Registered Transfer Module
      RTM             Remote Test Module
      RTN             Return
      RTN             Routine
      RTOP            Research and Technology Objectives and Plans
      RTOS            Real-Time Operating System
      RTS             Real-Time Systems
      RTS             Reliable Transfer Service
      RTS             Remote Takeover System
      RTS             Remote Testing System
      RTS             Request-to-Send
      RTSE            Reliable Transfer Service Element
      RTT             Round-Trip Time
      RTTY            Radio Teletype
      RTU             Remote Trunking Unit
      RTW             Return To Work
      RU              Receive Unit
      RU              Response Unit
      RUAC            Remote User Access Centers
      RUG             Resource Utilization Group
      RUM             Remote User Multiplex
      RVA             Recorded Voice Announcement
      RVD             Remote Virtual Disk
      RVO             Retinal Vein Occlusion
      RVOT            Right Ventricular Outflow Tract
      RW              Read-Write
      RWC             Read-Write-Create
      RWC             Remote Work Center
      RWE             Remote Wall Enclosure
      RWM             Read-Write Memory
      RWM             Regional Wall Motion
      RXN             Reaction
      RXT             Radiation Therapy
      S               Second
      S               Sequential
      S               Serial
      S               Sign
      S               Switch
      S-R             Set-Reset
      S/W             Software
      SA              Service Assistant
      SA              Simulated Annealing
      SA              Subject to Approval
      SA              Storage Array
      SA              System Administrator
      SA              Systems Analyst
      SAA             South Atlantic Anomaly
      SAA             Systems Application Architecture
      SAARD           Slow-Acting Antirheumatic Drug
      SAB             Short-acting Barbiturates
      SAB             Science Advisory Board
      SAB             Spontaneous Abortion
      SABB            Storage Array Building Block
      SAC             Service Area Code
      SAC             Special Area Code
      SAC             Storage Access Channel
      SAC             Storage Access Control
      SAC             Store and Clear Accumulator
      SACE            Serum Angiotensin Converting Enzyme
      SAD             Seasonal Affective Disorder
      SAD             Separation Anxiety Disorder
      SAD             Serial Analog Delay
      SADF            Semi-Automatic Document Feeder
      SAG             SQL Access Group
      SAH             Standard Allowed Hours
      SAH             Standard Average Hour
      SAH             Sub-Arachnoid Hemorrhage
      SAHF            Store AH Into Flags
      SAI             Serving Area Interface
      SAIDS           Simian AIDS
      SAIL            Stanford Artificial Intelligence Laboratory
      SAL             Shift AL Left
      SAL             Suction Assisted Lipectomy
      SAL             Symbolic Assembly Language
      SAL             Systems Assembly Language
      SALU            Structured Assembly Language Utilities
      SAM             Secure Access Multiport
      SAM             Sequential Access Method
      SAM             Serial-Access Memory Array
      SAM             Smoking-Attributable Mortality
      SAM             Sort and Merge
      SAM             Symantec Anti-Virus For Macintosh
      SAM             System Activity Monitor
      SAM             Smoking-Attributable Mortality
      SAO             Science Assessment Operations
      SAO             Smithsonian Astrophysical Observatory
      SAP             Second Audio Program
      SAP             Service Access Point
      SAP             Service Advertising Protocol
      SAP             Symbolic Assembly Program
      SAPS            Simplified Acute Physiological Score
      SAQ             Self-Administered Questionnaire
      SAR             Search and Rescue
      SAR             Shift Arithmetic Right
      SAR             Store Address Register
      SAR             Structural Adjustment Reforms
      SAR             Synthetic Aperture Radar
      SARA            Sexually Acquired Reactive Arthritis
      SARS            Sexual Assault Recovery Service
      SARTS           Switched Access Remote Test System
      SAS             Simulation Automation System
      SAS             Statistical Analysis System
      SAS             Switched-Access System
      SASA            Society Against Spread of AIDS
      SASE            Specific Application Service Element
      SASI            Shugart Associates System Interface
      SAT             Special Access Termination
      SAT             Supervisory Audio Tone
      SATB            Specific Aptitude Test Battery
      SAU             Secure Access Unit
      SAV             Saved File
      SAW             Surface Acoustic Wave
      SB              Single-Blind
      SB              Standby
      SBA             Shared Batch Area
      SBA             Small Business Administration
      SBA             System For Business Automation
      SBB             Subtraction With Borrow
      SBC             Single-Board Computer
      SBC             Small Business Computer
      SBCSS           Single Byte Command Code Set Mapping
      SBE             Social Behavioral and Economic Sciences
      SBE             Subacute Bacterial Endocarditis
      SBER            Social Behavioral and Economic Research
      SBF             Splanchnic Blood Flow
      SBFT            Small Bowel Follow-Through
      SBGM            Self Blood Glucose Monitoring
      SBH             St  Boniface General Hospital Libraries
      SBI             Storage Bus Interconnect
      SBI             Synchronous Bus Interface
      SBIR            Small Business Innovation Research
      SBL             Super Basic Language
      SBMS            Southwestern Bell Mobile Service
      SBN             Standard Book Number
      SBO             Surveillance by Objectives
      SBP             Systolic Blood Pressure
      SBS             Satellite Business System
      SBS             Sick Building Syndrome
      SC              Satellite Computer
      SC              Scanner Controller
      SC              Sectional Center
      SC              Seroconversion
      SC              Seroconvertor
      SC              Static Chunking
      SCADC           Standard Central Air Data Computer
      SCAMC           Symposium on Computer Applications in Medical Care
      SCAN            Switched-Circuit Automatic Network
      SCAS            Scan String
      SCC             Satellite Communications Controller
      SCC             Serial Communication Controller
      SCC             Serial Controller-Chip
      SCC             Specialized Common Carrier
      SCC             Storage Connecting Circuit
      SCC             Switching Control Center
      SCCP            Signaling Connection Control Part
      SCCS            Source Code Control System
      SCCS            Specialized Common Carrier Service
      SCCS            Switching Control Center System
      SCD             Sudden Cardiac Death
      SCD             Sudden Coronary Death
      SCD             Scientific Computing Division
      sCD4            Soluble CD4
      SCDE            Significant CALS Data Elements
      SCDMS           Society for Clinical Data Management Systems
      SCE             Sister-Chromatid Exchange
      SCF             Selective Call-Forwarding
      SCF             State Correctional Facility
      SCG             Security Classification Guide
      SCH             Schedule
      SCI             Spinal Cord Injury
      SCID            Severe Combined Immunodeficiency
      SCIT            Semi-Conductor and Interconnect Technologies
      SCIWORA         Spinal Cord Injury Without Radiographic Abnormality
      SCL             System Communication Location
      SCL             System Control Language
      SCLC            Small Cell Lung Carcinoma
      SCM             Segment Control Module
      SCM             Small Core Memory
      SCM             Software Configuration Management
      SCMP            System Cooperative Marketing Program
      SCN             Specifications Change Notice
      SCO             Santa Cruz Operation
      SCO             Semiconductor Operations
      SCO             Serving Central Office
      SCOMP           Secure Communications Processor
      SCOOPS          Scheme Object-Oriented Programming System
      SCOPE           Simple Communications Programming Enironment
      SCOR            Software and Courseware Online Reviews
      SCOT            Stepper Central Office Tester
      SCOTS           Surveilance and Control of Transmission Systems
      SCP             Secondary Communications Processors
      SCP             Signal Control-Point
      SCP             Standard Care Plan
      SCP             System Control Program
      SCPC            Single Channel-Per-Carrier
      SCPD            Scratch-Pad
      SCPM            Systems Cooperative Program Marketing
      SCR             Script File
      SCR             Selective Call Rejection
      SCR             Silicon Controlled Rectifier
      SCRAM           Support Center for Regulatory Air Models
      SCRI            Supercomputer Computations Research Institute
      SCRL            Split-Level Charge-Recovery
      SCRN            Screen
      SCS             Service Card System
      SCS             Silicon Controlled Switch
      SCS             Singapore Computer Society
      SCS             Small Computer System
      SCSI            Small Computer System Interface
      SCT             Storage Authorization Control Table
      SCT             Subroutine Call Table
      SCT             Synthetic Salmon Calcitonin
      SCTS            Secondary Clear to Send
      SCU             Selector Control Unit
      SCUF            Slow Continuous Ultrafiltration
      SCUP            Society for College and University Planning
      SCX             Specialized Communications Exchange
      SD              Send Data
      SD              Standard Deviation
      SDA             Screen Design Aid
      SDA             Shared Data Architecture
      SDA             Software Design Automation
      SDA             Source Data Automation
      SDA             Specific Dynamic Action
      SDA             System Display Architecture
      SDAV            Systems Design Automation Vendor
      SDC             Sample Data Collection
      SDC             Software Distribution Center
      SDCD            Secondary Data Carrier Detect
      SDCD            Space Data and Computing Division
      SDD             Software Design Document
      SDDAS           Southwest Research Data Display and Analysis System
      SDE             Software Development Environment
      SDF             Screen Definition Facility
      SDF             Standard Data Format
      SDI             Selective Dissemination of Information
      SDI             Single Document Interface
      SDI             Source Data Information
      SDI             Standard Data Interface
      SDI             Standard Disk Interconnect
      SDI             Standard Disk Interface
      SDI             Standard Drive Interface
      SDI             Storage Device Interconnect
      SDI             Strategic Defense Initiative
      SDI             Strategic Dissemination of Information
      SDI             Super Data Interchange
      SDILINE         Selective Dissemination of Information Online
      SDIS            Switched-Digital Integrated Service
      SDK             Software Development Kit
      SDL             System Design Language
      SDLC            Synchronous Data-Link Control
      SDM             Systems Development Methodology
      SDMA            Storage Device Migration Aid
      SDN             Software-Defined Network
      SDNS            Secure-Data Network Service
      SDP             Service Delivery Point
      SDP             Software Development Plan
      SDP             Streaming Data Procedure
      SDR             Shared Data Research
      SDR             Signal-To-Distortion Ratio
      SDR             Store Data Register
      SDR             Streaming Data Request
      SDRC            Structural Dynamics Research Corporation
      SDRP            Source Demand Routing Protocol
      SDS             Sales and Distribution Systems
      SDS             Same Day Surgery
      SDS             Scientific Data Systems
      SDS             Standard Depot System
      SDS             Switched Data Service
      SDS             Sysops Distribution System
      SDSC            San Diego Supercomputer Center
      SDSN            Secure Data System Network
      SDT             Software Development Tools
      SDT             Source Data Terminal
      SDT             Systems Development Tool
      SDU             Service Data Unit
      SE              Service Engineer
      SE              Software Engineering
      SE              Standard Error
      SE              Staphylococcal Enterotoxin
      SE              System Extension
      SE              Systems Engineer
      SEA             Self-Extracting Archive
      SEA             Society for Electronic Access
      SEA             Standard Extended Attribute
      SEA             System Enhancement Associates
      SEABA           Science Education Academy of the Bay Area
      SEAC            Standards Eastern Automatic Computer
      SEAP            Service Element Access Point
      SECAM           Sequential Color and Memory
      SECT            Section
      SED             Skin Erythema Dose
      SED             Stream Editor
      SEE             Systems Equipment Engineering
      SEER            Surveillance Epidemiology and End Results
      SEFAIN          Southeast Florida AIDS Information Network
      SEF             Source Explicit Forwarding
      SEG             Segment
      SEI             Software Engineering Institute
      SEL             Select
      SEL             Software Engineering Laboratory
      SEM             Scanning Electron Microscopy
      SEM             Standard Error of the Mean
      SEM             Systolic Ejection Murmur
      SEMI            Subendocardial Myocardial Infarction
      SENEC           Safety And Efficacy Not Esablished In Children
      SEP             Serum Electrophoresis
      SEP             Somatosensory Evoked Potential
      SEQ             Sequence
      SEQUEL          Structured English Query Language
      SER             Serial
      SER             Serine
      SER             Smooth Endoplasmic Reticulum
      SER             Somatosensory Evoked Response
      SERC            Science and Engineering Research Council
      SERC            Swedish Energy Research Commission
      SERLINE         Serials Online
      SERV            Service
      SES             Service Evaluation System
      SES             Socioeconomic Status
      SET             Software Engineering Technology
      SET             Study of Exceptional Talent
      SETI            Search for Extra-Terrestrial Intelligence
      SEU             Source Entry Utility
      SEW             Space and Electronic Warfare
      SF              Sign Flag
      SF              Single Frequency
      SF              Standard Form
      SFBI            Shared Frame Buffer Interconnect
      SFD             Symbolic File Directory
      SFMHS           San Francisco Men's Health Study
      SFQL            Structured Full-Text Query Language
      SFT             System Fault Tolerance
      SFU             Scheduler Function Unit
      SFW             Slow Filling Wave
      SFX             Sound Effects
      SFX             Special Effects
      SG              Specific Gravity
      SGA             Small For Gestational Age
      SGE             Suggested by Evidence
      SGEN            Signal Generator
      SGEN            System Generator
      SGI             Silicon Graphics Incorporated
      SGML            Standard Generalized Markup Language
      SGTSI           Semi-Graphical Tree Structure Interface
      SH              Switch Hook
      SHF             Super-High Frequency
      SHS             Strengthening of Health Services
      SHS             Student Health Services
      SI              Scientific Instrument
      Si              Silicon
      SI              Stimulation Index
      SI              Syncytia Inducing
      SI              System Information
      SI              Systeme International Units
      SIA             Semiconductor Industry Association
      SIA             Servicemen In Action
      SIAM            Society for Industrial and Applied Mathematics
      SIC             Silicon Integrated Circuit
      SIC             Standard Industry Classification
      SICS            Swedish Institute of Computer Sciences
      SID             Sudden Ionosphere Disturbance
      SID             Swift Interface Device
      SID             System Identification
      SIDS            Small Island Developing States
      SIDS            Sudden Infant Death Syndrome
      SIE             Start Interpretive Execution
      SIG             Signal
      SIG             Special Interest Group
      sIgA            Secretory IgA
      SIGDA           Special Interest Group on Design Automation
      SILS            School of Information and Library Studies
      SIM             Semantic Information Manager
      SIM             Service Industry Marketing
      SIM             Signal Interface Module
      SIM             Simulation
      SIM             Simulator
      SIM             Switch-It Module
      SIMD            Single-Instruction Multiple-Data
      SIMM            Single In-Line Memory Module
      SIMM            System Integrated Memory Module
      SIMNET          Simulation Network
      SIMP            Satellite Information Message Protocol
      SINS            Serial Inversion Null Synthesis
      SIO             Serial Input/Output
      SIP             Sickness Impact Profile
      SIP             Simple Internet Protocol
      SIP             Simulated Input Processor
      SIP             Single In-Line Package
      SIP             Strategic Information Plan
      SIP             Symbolic Input Program
      SIP             Systems Integration Plan
      SIPP            Simple Internet Protocol Plus
      SIPP            Strategic Industry Partners Program
      SIPS            Satellite Imagery Processing System
      SIR             Selective Information Retrieval
      SIR             Serial Infrared
      SIR             Shuttle Imaging Radar
      SIR             Statistical Information Retrieval
      SIRI            Integrated Service for Information Resources
      SIRS            Systemic Inflammatory Response Syndome
      SIS             Scientific Instruction Set
      SIS             Software Information Services
      SIS             Strategic Information System
      SISC            Science Information System Center
      SISI            Short Increment Sensitivity Index
      SIT             Special Information Tone
      SITD            Still In The Dark
      SIV             Simian Immunodeficiency Viruses
      SIWPS           Simple Internet White Pages Service
      SJF             Shortest Job First
      SKAB            Skeletal Antibody
      SL              Storage Location
      SLA             Service Level Agreement
      SLAC            Stanford Linear Accelerator
      SLAM            Simulation Language For Alternative Modeling
      SLAR            Side-Looking Airborne Radar
      SLC             Service Level Contract
      SLD             Scientific Laboratory Division
      SLDC            Synchronous Data Link Control
      SLE             Screen List Editing
      SLE             Systemic Lupus Erthyematosus
      SLIC            Subscriber Line Interface Card
      SLIP            Serial Line Internet Protocol
      SLMR            Silly Little Mail Reader
      SLP             Symposium on Logic Programming
      SLR             Service Level Reporter
      SLR             Straight-Leg Raising
      SLS             Segment Long Spacing
      SLS             Storage Library System
      SLSI            Super Large-Scale Integration
      SLT             Solid-Logic Technology
      SLU             Secondary Logical Unit
      SLU             Serial Line Unit
      SM              Service Mark
      SM              Shared Memory
      SM              Streptomycin
      SM              Switching Module
      SMA             Sequential/Serial Multiple Analysis
      SMAC            Automated Chemistry Test
      SMAF            Specific Macrophage Activating Factor
      SMART           System Management and Review Technique
      SMART           System Monitoring and Reporting Tool
      SMAS            Switched Maintenance Access System
      SMAST           Short Michigan Alcohol Screening Test
      SMB             Server Message Block
      SMBV            Suckling Mouse Brain Vaccine
      SMD             Scheduling Management Display
      SMD             Senile Macular Degeneration
      SMD             Surface-Mounted-Device
      SMDI            Storage Module Disk Interconnect
      SMDR            Station Message Detail Recording
      SMDR            Storage Management Data Requester
      SMDS            Switched Multi-Megabit Data Service
      SME             Society of Manufacturing Engineering
      SMF             Standard Message Format
      SMF             System Manager Facility
      SMF             Systems Management Facilities
      SMFA            Specific Management Functional Area
      SMFF            Script Mathematical Formula Formatter
      SMI             Structure of Management Information
      SMI             System Management Interrupts
      SMIF            Standard Mechanical Interface
      SMK             Software Migration Kit
      SMK             Structured Meta-Knowledge
      SMP             Symmetrical Multiprocessor
      SMP             System Modification Program
      SMPC            Shared Memory Parallel Computer
      SMPL            Sample
      SMPU            Switch Module Processor Unit
      SMR             Service Marketing Representative
      SMR             Source Maintainability and Reliability
      SMR             Specialized Mobile Radio Systems
      SMRT            Signal Message Rate Timing
      SMS             Science Mission Specifications
      SMS             Service Management System
      SMS             Shared Medical Systems
      SMS             Storage Management Services
      SMS             Systems Management Server
      SMS             System-Managed Storage
      SMSA            Standard Metropolitan Statistical Area
      SMT             Segment Table Map
      SMT             Station Management Technology
      SMT             Surface-Mount Technology
      SMTP            Simple Mail-Transfer Protocol
      SMU             Space Management Utilities
      SMX             Sulfamethoxazole
      SN              Serial Number
      SN              Seronegative
      SN              Supernatants
      SN              Supernatents
      SN              Switching Network
      Sn              Tin
      SNA             Systems Network Architecture
      SNADS           Systems Network Architecture Distribution Service
      SNAP            Shipboard Non-Tactical Automated Data Processing Program
      SNAP            Standard Network Access Protocol
      SNAP            Sub-Network Access Protocol
      SNAP            System and Network Administration Program
      SND             Sound
      SNF             Shared Network Facilities
      SNF             Skilled Nurse Facility
      SNI             Standard Network Interconnection
      SNMP            Simple Network Management Protocol
      SNOBOL          String-Oriented Symbolic Language
      SNPA            Sub-Network Point of Attachment
      SNPC            Software New Products Committee
      SNR             Signal-to-Noise Ratio
      SNT             Standard Neutralization
      SO              Serial Output
      SO              Shift-Out
      SO              Slow Oxidative
      SO              System Option
      SO2             Oxygen Saturation
      SOA             Safe Operating Area
      SOA             State of The Art
      SOAC            Service Order Analysis Control
      SOAP            Symbolic Optimizer and Assembly Program
      SOAP            Symbolic Optimizing Assembler Program
      SOB             Shortness Of Breath
      SOB             Start of Block
      SOC             Service-Oversight Center
      SOC             State of Consciousness
      SOC             System-on-a-Chip
      SOC             Systems and Option Catalog
      SODA            System Optimization and Design Algorithm
      SOE             Standard Operating Environment
      SOE             Standards of Excellence
      SOH             Service Order History
      SOH             Start of Header
      SOL             Simulation-Oriented Language
      SOM             Self-Organizing Machine
      SOM             Start of Message
      SOM             System Object Model
      SONAR           Service Order Negotiation and Retrieval
      SONDS           Small Office Network Data System
      SONET           Synchronous Optical Network
      SONIC           Span Ocean Network Information Center
      Sono            Ultrasound
      SOP             Standard Operating Procedure
      SOP             Study Organization Plan
      SOR             Successive Over-Relaxation
      SOS             Share Operating System
      SOS             Standards and Open Systems
      SOS             Support On Site
      SOS             Symbolic Operating System
      SOSP            System Operational and Support Plan
      SOST            Special Operator Service Treatment
      SOTA            State of the Art
      SOX             Sound Exchange
      SP              Satellite Processor
      SP              Signal Peptide
      SP              Single Purpose
      SP              Space Character
      SP              Speech Processing
      SP              Stack Pointer
      SP              Start Point
      SP              Structured Programming
      SP              Survival Probability
      SP              System Product
      SPA             Scratchpad Area
      SPA             Software Publishers Association
      SPA             Solar Panel Assembly
      SPAN            Space Physics Analysis Network
      SPARC           Scalable Processor Architecture
      SPC             Software Productivity Consortium
      SPC             Standard Plate Count
      SPC             Statistical Process Control
      SPC             Stored Program Command
      SPC             Stored Program Control
      SPC             System Professional Computer
      SPCS            Stored Program Control Systems
      SPD             Software Product Description
      SPD             Software Products Division
      SPDA            Supplier Data Program
      SPDL            Standard Page Description Language
      SPE             Supported by Evidence
      SPE             Symbolic Programming Environment
      SPEC            Specification
      SPEC            Standard Performance Evaluation Corporation
      SPECT           Single Photon Emission Computed Tomography
      SPECT           Single-Photon Emission Tomography
      SPEP            Serum Protein Electrophoresis
      SPF             Specific-Pathogen Free
      SPF             Structured Programming Facility
      SPF             Sun Protection Factor
      SPG             Software Product Group
      SPI             Selective Protein Index
      SPI             Self-Paced Instruction
      SPI             System Performance Instrument
      SPICE           Scalable Parallel Intelligent Communications Engine
      SPIN            Sponsored Programs Information Network
      SPKM            Simple Public-Key Mechanism
      SPKR            Speaker
      SPL             Simple Programming Language
      SPL             Sound Pressure Level
      SPL             Spell Checker File
      SPL             Spooler
      SPL             System Programming Language
      SPM             Set Program Mask
      SPM             Software Performance Monitor
      SPM             Source Program Maintenance
      SPM             System Performance Monitor
      SPO             Shadow Patent Office
      SPOC            State-Point-of-Contact
      SPOOL           Simultaneous Peripheral Operation On-Line
      SPP             Sequenced Packet Protocol
      SPR             Software Problem Report
      SPS             Self-Preservation Society
      SPS             Software Product Services
      SPS             Stand-By Power System
      SPS             String Processing System
      SPS             Super Proton Synchrotron
      SPS             Symbolic Programming System
      SPSL            Special-Purpose Simulation Language
      SPSS            Science Planning and Scheduling System
      SPSS            Statistical Package for the Social Sciences
      SPU             System Processing Unit
      SPUCDL          Serial Peripheral Unit Controller/Data Link
      SPUR            Supercomputing Program for Undergraduate Research
      SPX             Sequential Packet Exchange
      SQ              Signal Quality
      sq              Square
      SQ              Squeezed
      SQA             Software Quality Assurance
      SQC             Statistical Quality Control
      SQD             Signal Quality Detector
      SQUID           Super Quantum Interference Devices
      SQL             Structured Query Language
      SQL/DS          Structured Query Language/Data System
      SQLDA           Structured Query Language Descriptor Area
      SQM             Software Quality Management
      SQRT            Square Root
      SR              Search and Retrieval
      SR              Slow Release
      SR              Status Register
      SR              Stimulation Ratio
      SR              Sustained Release
      SR              Systems Review
      SRAM            Shadow Random-Access Memory
      SRAM            Static Random-Access Memory
      SRAW            Specific Airway Resistance
      SRB             Solid Rocket Booster
      SRBC            Sheep Red Blood Cell
      SRC             Source
      SRC             System Resource Center
      SRCC            Southern Regional Climate Center
      SRD             Screen Reader System
      SRD             Secondary Received Data
      SRF             Skin-Reacting Factor
      SRF             Somatotropin Releasing Factor
      SRG             Strategic Relations Group
      SRH             Somatotropin Releasing Hormone
      SRI             Stanford Research Institute
      SRIF            Somatotropin Releasing Inhibiting Factor
      SRL             System Reference Library
      SRM             System Resources Manager
      sRNA            Soluble Ribonucleic Acid
      SRPI            Server-Requester Programming Interface
      SRPM            Scalable Reverse Path Multicast
      SRQ             Service Request
      SRR             Serially Reusable Resource
      SRR             Standardized Rate Ratio
      SRS             Science Resources Studies
      SRS             Sequence Retrieval System
      SRS             Service Repair System
      SRT             Signal Requests Terminal
      SRT             Speech Reception Threshold
      SRV             Simian Retroviruses
      SS              Saturated Solution
      SS              Self-Scheduling
      SS              Single Sided
      SS              Solid State
      SS-DNA          Single-Stranded DNA
      SS/DD           Single-Sided/Double-Density
      SS/SD           Single-Sided/Single-Density
      SSA             Serial-Storage Architecture
      SSA             Social Security Administration
      SSADM           Structured Systems Analysis and Design Method
      SSAN            Social Security Account Number
      SSAS            Station Signaling and Announcement System
      SSB             Single Sideband
      SSC             Science Support Center
      SSC             Special Services Center
      SSC             Specialized Systems Consultants
      SSC             Superconducting Super Collider
      SSCP            System Services Control Point
      SSD             Solid State Disk
      SSD             Solid State Storage Device
      SSD             Source-Skin Distance
      SSDA            Synchronous Serial Data Adapter
      SSDD            Single-Sided Double Density
      SSDD            Solid State Disk Drive
      SSDU            Session Service Data Unit
      SSE             Simple Screen Editor
      SSE             Software Support Engineer
      SSEC            Selective Sequence Electronic Calculator
      SSEL            Session Service Selector
      SSEP            Somatosensory Evoked Potential
      SSG             Software Systems Group
      SSG             Strategic Studies Group
      SSHE            State System of Higher Education
      SSI             Small-Scale Integration
      SSI             Software Systems Interface
      SSI             Supplemental Security Income
      SSKI            Saturated Solution of Potassium Iodine
      SSL             Solid Statement Library
      SSM             Set System Mask
      SSN             Social Security Number
      SSO             Satellite-Switching Office
      SSOPs           Sequence-Specific Oligonucleotide Probes
      SSP             Scientific Subroutine Package
      SSP             Structured Support Program
      SSP             System Support Program
      SSPE            Subacute Sclerosing Pan-Encephalitis
      SSR             Solid-State Relay
      SSR             Solid-State Relays
      SSR             Supplemental Security Record
      ssRNA           Single Stranded Ribonucleic Acid
      SSS             Sick Sinus Syndrome
      SSS             Software Support Services
      SSS             Spatialized Sound Server
      SSSD            Single-Sided Single-Density
      SSSS            Staphylococcal Scalded Skin Syndrome
      SST             Simple SIPP Transition
      SSTO            Single Stage To Orbit
      SSU             Salisbury State University
      ST              Segment Table
      ST              Standard Time
      ST              Start
      ST              System Test
      STA             Spanning Tree Algorithm
      STAIRS          Storage and Information Retrieval System
      STAM            Shared-Time Allocation Manager
      STAR            Self-Testing and Repair
      STARS           Software Technology for Adaptable Reliable Systems
      STAT            At Once
      STB             Set Break
      STB             Software Technical Bulletin
      STB             Stop Bits
      STC             Serving Test Center
      STC             Set Carry Flag
      STC             Short-Title Catalogue
      STC             Standard Lymphocytotoxicity Test
      STC             Standard Transmission Code
      STC             Switching Technical Center
      STD             Secondary Transmitted Data
      STD             Set Direction Flag
      STD             Sexually Transmitted Disease
      STD             Skin Test Dose
      STD             Standard
      STD             Subscriber Trunk Dialing
      STDIN           Standard Input
      STDM            Synchronous Time Division Multiplexer
      STDOUT          Standard Output
      STDPRN          Standard Printer
      STE             Standard Terminal Equipment
      STEL            Short-Term Exposure Limit
      STELAR          Study of Electronic Literature for Astronomical Research
      STEP            Solar-Terrestrial Energy Program
      STF             Structured File
      STG             Strategic Technologies Group
      STH             Somatotrophic Hormone
      STHLE           Society of Teaching and Learning in Higher Education
      STI             Scientific and Technical Information
      STI             Set Interrupt Flag
      STI             Standard Tape Interface
      STI             Systolic Time Intervals
      STIS            Science and Technology Information System
      STLHE           Society of Teaching and Learning in Higher Education
      STM             System Master Tape
      STO             Sales Training Orientation
      STOAT           Space Telescope Operations Advisory Team
      STOCC           Space Telescope Operations Control Center
      STOR            Storage
      STORM           Statistically-Oriented Matrix Program
      STOS            Store String
      STOS            Store String Data
      STP             Segment Table Register
      STP             Selective Tape Print
      STP             Shielded Twisted-Pair
      STP             Signal Transfer Point
      STP             Standard Temperature and Pressure
      STP             Stick Parity
      STP             System Training Program
      STPS            Signal Transfer Points
      STR             Science Tape Recorder
      STR             Synchronous Transmit Receive
      STRESS          Structural Engineering System Solver
      STS             Serologic Test for Syphylis
      STS             Shared-Tenant Service
      STS             Space-Time-Space Network
      STS             Synchronous Transport Signal
      STSI            Space Telescope Science Institute
      STTL            Standard Transistor-Transistor Logic
      STTNG           Star Trek The Next Generation
      STTR            Small Business Technology Transfer
      STU             Secure Telephone Unit
      STX             Start-of-Text
      STY             Style File
      SU              Screening Units
      SU              Selectable Unit
      SU              Signalling Unit
      SU              Storage Unit
      SU              Surface Protein
      SUAM            State University Administrative Manual
      SUB             Arithmetic Subtraction
      SUB             Subroutine
      SUB             Subtract
      SUDAAN          Software for Survey Data Analysis
      SUDS            Software Update and Distribution System
      SUN             Single-User Network
      SUNET           Swedish University Network
      SUP             Supplemental
      SUP             Supplemental Dictionary File
      SUPV            Supervisor
      SURANET         Southeastern Universities Research Association Network
      SURF            System Utilization Reporting Facility
      SV              Sendai Virus
      SV              Stroke Volume
      SVA             Shared Virtual Area
      SVC             Supervisor Call
      SVC             Switched Virtual Circuit
      SVD             Simultaneous Voice/Data
      SVD             Spontaneous Vaginal Delivery
      SVE             Simple Virtual Environment
      SVFS            System V File System
      SVGA            Super Video Graphics Array
      SVID            System V Interface Definition
      SVP             Schematic Verification Program
      SVPC            Single Variable Per Constraint
      SVR             Systemic Vascular Resistance
      SVR4            System V Release 4
      SVT             Supraventricular Tachycardia
      SW              Short Wave
      SWA             Scheduler Work Area
      SWAN            Sun Wide Area Network
      SWAP            Soluble Adult Worm Antigenic Preparation
      SWP             Swap File
      SWS             Software Services
      Sx              Signs
      Sx              Symptoms
      SXS             Step-By-Step
      SYLK            Symbolic Link
      SYM             Symbols File
      SYN             Synonym
      SYN             Synonym File
      SYNC            Synchronized
      SYNC            Synchronous
      SYS             System
      SYS             System Configuration File
      SYS             System Device Driver
      SysOp           Systems Operator
      SYSRQ           System Request
      T               Tablespoon
      T               Temperature
      T               Thymidine
      T               Thymine
      T&C             Time and Charge
      T&C             Type-and-Crossmatch
      T&E             Test and Evaluation
      T&H             Type-and-Hold
      T-1/2           Half-Life
      T-Ag            T General Antigen
      Ta              Tantalum
      TA              Technical Assistance
      TA              Toxin-Antitoxin
      TA              Training Analyst
      TA              Transfer Allowed
      TAB             Tape Assembly Bonding
      TAB             Therapeutic Abortion
      TAB             Triple Antibiotic
      TAC             Telenet Access Controller
      TAC             Terminal Access Circuit
      TAC             Terminal Access Controller
      TAD             Telephone Answering Device
      TAD             Tricyclic Antidepressent Drug
      TADI            Time Assigned Data Interpolation
      TADS            Test and Debug System
      TAE             Transportable Applications Environment
      TAF             Terminal Access Facility
      TAG             Text and Graphics
      TAG             Treatment Action Group
      TAGS            Technical Architecture Guides
      TAH             Total Abdominal Hysterectomy
      TAH             Total Artificial Heart
      TAL             Telecommunications Access Language
      TAL             Total Arm Length
      TAN             Telecomm and Networks
      TANJ            There Ain't No Justice
      TAP             Tax-Payers Assets Protection
      TAP             Technological Assistance Party
      TAP             Telephone-Assistance Plan
      TAP             Trace Analysis Program
      TAP             Transmembrane Action Potential
      TAS             Telephone Answering Service
      TAS             Typical Absence Seizures
      TASC            Telecommunications Alarm Surveillance and Control System
      TASH            The Association for Persons With Severe Handicaps
      TASI            Time-Assigned Speech Interpolation
      TASM            Turbo Assembler
      TAT             Thematic Apperception Test
      TAT             Toxin-Antitoxin
      TAT             Turn-Around-Time
      TAXIR           Taxonomic Information Retrieval
      TB              Tabular Bayes' Algorithm
      TB              Terabyte
      Tb              Terbium
      TB              Total Body
      TB              Tuberculosis
      TBA             To Be Added
      TBA             To Be Administered
      TBA             To Be Admitted
      TBA             To Be Announced
      TBA             Traditional Birth Attendants
      TBBS            The Bread Board System
      TBD             To-Be-Determined
      TBDS            Tuberculosis Database System
      TBE             Tick-Borne Encephalitis
      TBF             Total Body Fat
      TBI             Total Body Irradiation
      TBI             Traumatic Brain Injury
      TBK             Toolbook File
      TBL             Table
      TBL             Tablespoon
      TBM             Terabit Memory
      TBM             Tuberculous Meningitis
      TBN             Total Body Nitrogen
      TBNA            Transbronchial Needle Aspiration
      TBR             Total Bed Rest
      TBS             Terminal Business System
      TBSA            Total Burn Surface Area
      tbsp            Tablespoon
      TBV             Total Blood Volume
      TBW             Total Body Water
      TBX             Tumor Bed Irradiation
      TC              Tactical Computer
      Tc              Technetium
      TC              Technical Committee
      TC              Telecommunications
      TC              Terminal Computer
      TC              Terminal Controller
      TC              Toll Center
      TC              Toxic Concentration
      TC              Transaction Capabilities
      TC              Transfer Control
      TC              Transfer Cost
      TC              Transmission Control
      TC              Transmitter Clock
      TCA             Terminal Control Area
      TCA             Tricarboxylic Acid
      TCA             Trichloroacetic Acid
      TCA             Tricyclic Antidepressants
      TCAM            Telecommunications Access Method
      TCB             Task-Control Block
      TCB             Trusted Computer Base
      TCC             Technical Consulting Center
      TCCC            Technical Committee on Computer Communications
      TCDU            Trans-Cranial Doppler Ultrasound
      TCE             Trichloroethylene
      TCF             Terminal Configuration Facility
      TCF             Transparent Computing Facility
      TCG             Test-Call Generation
      TCID            Tissue-Culture Infective Doses
      TCM             Thermal Conduction Module
      TCM             Time Compression Multiplexer
      TCM             Tissue Culture Medium
      TCM             Trellis-Coded Modulation
      TCMI            T-Cell Mediated Immunity
      TCN             Tetracycline
      TCNS            Thomas Conrad Network System
      TCP             Tape-Conversion Program
      TCP             Transmission Control Protocol
      TCP             Transmitter Clock
      TCP             Transport Communications Protocol
      TCP/IP          Transmission Control Protocol/Internet Protocol
      TCPC            Tab Card Punch Control
      TCR             T-Cell Receptor
      TCR             Transient Call Record
      TCS             Terminal Control System
      TCS             Thermal Control System
      TCS             Traction Control System
      TCSEC           Trusted Computer System Evaluation Criteria
      TCT             Toll-Connecting Trunk
      TCU             Tape Control Unit
      TCU             Timing Control Unit
      TCU             Transmission Control Unit
      TD              Tabular Data
      TD              Tape Drive
      TD              Transmit Data
      TDA             Toluenediamine
      TDAS            Traffic Data Administration System
      TDC             Tape Data Controller
      TDC             Terrestrial Data Circuit
      TDCC            Transportation Data Coordinating Committee
      TDD             Telecommunication Device for the Deaf
      TDD             Thoracic Duct Drainage
      TDE             Total Daily Energy
      TDF             Trace Definition File
      TDF             Typeface Definition File
      TDI             Toluene Diisocyanate
      TDI             Transport Driver Interface
      TDI             Trusted Database Interpretation
      TDK             Tardive Dyskinesia
      TDL             Test Description Language
      TDM             Text and Date Messaging
      TDM             Therapeutic Drug Monitoring
      TDM             Time-Division-Multiplexing
      TDMA            Time Division Multiple Access
      TDMS            Terminal Data Management System
      TDP             Technical Data Package
      TDR             Time Domain Reflectometer
      TDR             Transmit Data Register
      TDR             Tropical Diseases Research
      TDRS            Tracking and Data Relay Satellite
      TDRSS           Tracking and Data Relay Satellite System
      TDSR            Transmitter Data Service Request
      TE              Terminal Equipment
      TE              Test Equipment
      TE              Toxoplasma Encephalitis
      TE              Trace Elements
      TEA             Texas Education Agency
      TEAC            Tetraethylammonium Chloride
      TEB             Thoracic Electric Bioimpedence
      TEC             Technology Exchange Company
      TEC             Tetracaine Epinephrine Cocaine
      TEC             Total Eosinophil Count
      TECH            Technology
      TED             Threshold Erythema Dose
      TED             Tiny Editor
      TEE             Telemetered Endocardial Electrogram
      TEE             Transesophageal Echocardiography
      TEI             Text Encoding Initiative
      TELCO           Telephone Company
      TELEX           Teletypewriter Exchange
      TEMP            Temporary
      TEN             Technical Education Network
      TEN             Toxic Epidermal Necrolysis
      TENS            Transcutaneous Electrical Nerve Stimulation
      TEOP            Trans-Esophageal Overdrive Pacing
      TER             Technology Terminology Service
      TER             Trailing Edge Indicator
      TESS            Total Engineering Support System
      TEST            Logical Compare
      TET             Treadmill Exercise Test
      TEX             TeX File
      TEXIS           Texas Information System
      TF              Term Frequency
      TF              Transfer Factor
      TFD             Transcription Factor Database
      TFDD            Text File Device Driver
      TFHE            Task Force on Health Economics
      TFM             Tagged Font Metric File
      TFM             TeX Font Metric file
      TFPC            Trouble-Free Personal Computing
      TFS             Translucent File System
      TFT             Thin-Film Transistor
      TFT             Trifluridine
      TFTP            Television Facility Test Position
      TFTP            Trivial File Transfer Protocol
      TG              Triglyceride
      TGA             Transposition of the Great Vessels
      TGC             Time-Gain Compensation
      TGF             Transforming Growth Factor
      TGGE            Temperature-Gradient Gel Electrophoresis
      TGN             Trunk Group Number
      TGV             Thoracic Gas Volume
      Th              Thorium
      THC             Tetrahydrocannabinol
      THD             Thread File
      THEnet          Texas Higher Education Network
      THF             Thymic Humoral Factor
      THS             Thesaurus File
      TI              Technical Information
      TI              Term Importance
      TI              Therapeutic Index
      Ti              Titanium
      TIA             Technology Impact Analysis
      TIA             Telephone Information Access
      TIA             Thanks In Advance
      TIA             Transient Ischemic Attack
      TIBC            Total Iron-Binding Capacity
      TIC             Technical Information Center
      TIC             Tongue-In-Cheek
      TIE             Terminal Interface Equipment
      TIES            Telecom Information Exchange Services
      TIES            Total Integrated Engineering System
      TIF             Tagged Image File
      TIF             The Information Facility
      TIF             Tumor-Inducing Factor
      TIFF            Tagged-Image File Format
      TIG             Tetanus Immune Globulin
      TIGA            Texas Instruments Graphic Architecture
      TIM             Token Interface Module
      TIN             Texas Innovation Network
      TIO             Test Input/Output
      TIP             Team Improvement Program
      TIP             Technical Information Processing
      TIP             Total Information Processing
      TIPC            Texas Instruments Personal Computer
      TIPS            Text Information Processing System
      TIPS            Treatment Improvement Protocol Statements
      TIPS            Truevision Image Paint Software
      TIRKS           Trunk Integrated Record Keeping System
      TIS             Total Information System
      TISN            Tokyo International Science Network
      TIU             Tape Identification Unit
      TK              Thymidine Kinase
      TKD             Tokodynamometer
      TKG             Tokodynagraph
      TKO             To Keep Open
      TKVO            To Keep Vein Open
      TL              Tape Library
      Tl              Thallium
      TL              Total Loss
      TLA             Three-Letter Acronym
      TLB             Translation Lookaside Buffer
      TLC             The Learning Center for Interactive Technology
      TLC             Thin Layer Chromatography
      TLC             Total Lung Capacity
      TLC             Total Lymphocyte Count
      TLG             Thesaurus Linguae Graecae
      TLI             T-Lymphocyte Immunophenotyping
      TLI             Total Lymphoid Irradiation
      TLI             Transport Layer Interface
      TLN             Trunk Line Network
      TLP             Transient Lunar Phenomenon
      TLU             Table Look-Up
      TLV             Threshold Limit Value
      TLX             Telex File
      TM              Tape Mark
      Tm              Thulium
      TM              Transmembrane Protein
      TM              Turing Machine
      TMA             Telephone Management and Accounting
      TMB             Transient Monocular Blindness
      TMC             Trapeziometacarpal
      TMCC            Time-Multiplexed Communication Channel
      TMCR            Technical Manual Contract Requirement
      TMD             Tempero-Mandibular Disorder
      TME             Transmission Measurement Unit
      TMF             Transaction Monitor Facility
      TMIS            Telecommunications Management Information System
      TMJ             Temporo-Mandibular Joint
      TMMS            Telephone Message Management System
      TMO             Telephone Money Order
      TMP             Temporary
      TMP             Temporary File
      TMP             Thermo-Magnetic Printing
      TMP             Trimethoprim
      TMP-SMX         Trimethoprim-Sulfomethoxazole
      TMR             Transient Memory Record
      TMR             Triple Modular Redundancy
      TMRC            Transportation Modeling Research Center
      TMRS            Traffic-Metering Remote System
      TMS             Telecommunications Message Switcher
      TMS             Telephone Management System
      TMS             Time-Multiplexed Switch
      TMSCP           Tape Mass Storage Control Protocol
      TMSD            Technical Manual Source Data
      TMSS            Technical Manual Specifications and Standards
      TMTE            Telemetered Main Timing Events
      TMU             Time Measurement Unit
      TMV             Tobacco Mosaic Virus
      TMX             Tamoxifen
      TN              Terminal Node
      TN              Tibial Nerve
      TNC             Terminal Node Controller
      TND             Test Number Directory
      TNDS            Total Network Data System
      TNET            Temporal Network
      TNF             Tumor Necrosis Factor
      TNFS            Trusted Network File System
      TNM             Tumor Node Metastases Classification System
      TNN             Trunk Network Number
      TNOP            Total Network Operation Plan
      TNPC            Traffic Network Planning Center
      TNRs            Trinucleotide Repeat Sequences
      TNS             Transaction Network Service
      TNS             Transcutaneous Nerve Stimulation
      TNTC            Too Numerous To Count
      TNX             Thanks
      TO              Technical Orders
      TO              Telegraph Office
      TO              Telephone Order
      TO              Time Out
      TOC             Table of Contents
      TOC             Table of Contents File
      TOCHI           Transactions on Computer-Human Interaction
      TOCP            Tri-O-CresylPhosphate
      TOD             Time-Oriented Database
      TOD             Time-of-Day
      TODS            Transactions on Database Systems
      TOE             Total Operating Expense
      TOEM            Technical Original Equipment Manufacturer
      TOF             Top-of-File
      TOF             Top-of-Form
      TOGA            Tropical Oceans and Global Atmosphere
      TOIS            Transactions on Information Systems
      TOMS            Technical Order Management System
      TOMS            Transactions on Mathematical Software
      TOOIS           Transactions on Office Information Systems
      TOP             Technical Office Protocol
      TOPI            Total On-Line Program and Information Control
      TOPLAS          Transactions on Programming Languages and Systems
      TOPS            Take Off Pounds Sensibly
      TOPS            Tapes and Optical Products
      TOPV            Trivalent Oral Polio Vaccine
      TOS             Tape-Operating System
      TOS             Terminal-Oriented Software
      TOS             Terminal-Oriented System
      TOS             Thoracic Outlet Syndrome
      TOS             Transfer Orbit Stage
      TOS             Transparent Operating System
      TOSS            Total Office Support System
      TOT             Trainer of Trainers
      TOXLINE         Toxicology Information Online
      TOXLIT          Toxicology Literature
      TOY             Time of Year
      TP              Tape
      TP              Technical Publication
      TP              Teleprocessing
      TP              Test Procedure
      TP              Toll Point
      TP              Total Protein
      TP              Transaction Processing
      TP              Twisted Pair
      TP-PMD          Twisted Pair-Physical Medium Dependent
      TPA             Third Party Applications
      TPA             Treponema Pallidum Agglutination
      TPC             Total Paid Charges
      TPC             Toxic Products of Combustion
      TPC             Transaction Processing Council
      TPDDI           Twisted Pair Distributed Data Interface
      TPDR            Technical Publication Deficiency Report
      TPE             The Power Exchange
      TPF             Transaction Processing Facility
      TPI             Tracks-Per-Inch
      TPI             Trigger Point Injection
      TPL             Table-Producing Language
      TPL             Traditional Product Line
      TPM             Transactions-Per-Minute
      TPMP            Total Network Data System Performance Measurement Plan
      TPMS            Transaction Processing Management System
      TPN             Total Parenteral Nutrition
      TPNS            Tele-Processing Network Simulator
      TPO             Traveling Post Office
      TPP             Thiamine Pyrophosphate
      TPR             Temperature Pulse Respiration
      TPR             Total Peripheral Resistance
      TPR             True Positive Rate
      TPS             Technical Publication Software
      TPS             Test Program Set
      TPS             Transaction Processing System
      TPS             Transactions-Per-Second
      TPS             Translation Planning System
      TPT             Topotecan
      TPU             Text Processing Utility
      TPU             Turbo Pascal Unit
      TQC             Total Quality Control
      TQM             Total Quality Management
      TR              Terminal Ready
      TR              Token Ring
      TR              Transfer Register
      TRADIC          Transistorized Airborne Digital Computer
      TRAP            Tandem Recursive Algorithm Process
      TRCO            Trouble-Reporting Control Office
      TRE             Tax-Response Element
      TRH             Thyroid Releasing Hormone
      TRI             Toxic Chemical Release Inventory
      TRIB            Transfer Rate of Information Bits
      TRICS           Tiled Raster Interchange Conversion Server
      TRIE            Technology Resources in Education
       TRIF            Tiled Raster Interchange Format
      TRM             Tamper-Resistant Modules
      TRM             Terminal File
      TRMM            Token Ring Management Module
      tRNA            Transfer Ribonucleic Acid
      TRNG            Tetracycline-Resistant Neisseria Gonorrhea
      TRON            The Real-Time Operating Nucleus
      TRP             Transmembrane Resting Potential
      TRS             Term-Rewriting Systems
      TRS             Tubuloreticular Structures
      TRSA            T Cell-Released Suppressor Activity
      TRSA            Terminal Radar Service Area
      TRUC            The Rice University Computer
      TRX             Transaction
      TS              Terminal Server
      TS              Thymidilate Synthase
      TS              Top Secret
      TS              Tourette's Syndrome
      TS              Toxic Substance
      TS              Trauma Score
      TS              Tuberous Sclerosis
      TSA             Target Service Agents
      TSA             Tumor Specific Antigen
      TSANet          Technical Support Alliance Network
      TSAP            Transport Service Access Point
      TSCPF           Time Switch and Call-Processor
      TSD             Total System Design
      TSDU            Transport Service Data Unit
      TSE             Test of Spoken English
      TSEL            Transport Service Selector
      TSF             Triceps Skin-Folds
      TSH             Thyroid Stimulating Hormone
      TSI             Time-Slot Interface
      TSIG            Trusted Systems Interoperability Group
      TSIU            Time-Slot Interchange Unit
      TSL             Texas State Library
      TSN             Terminal Switching Network
      TSO             Technical Services Organization
      TSO             Technical Standard Order
      TSO             Time-Sharing Option
      tsp             Teaspoon
      TSP             Technical Solutions Presentations
      TSP             Technology Strategy and Planning
      TSP             Teleprocessing Services Program
      TSP             Traffic Service Position
      TSP             Travelling Salesman Problem
      TSPS            Traffic Service Position System
      TSR             Terminate-and-Stay-Resident
      TSS             Time-Sharing System
      TSS             Toxic Shock Syndrome
      TSS             Transfusion Safety Study
      TSS             Trapezoid Self-Scheduling
      TSS             Trunk-Servicing System
      TSSF            Tape-Staging and Storage Facility
      TST             TB Skin Tests
      TST             Test
      TST             Test File
      TST             Tuberculin Skin Test
      TSTA            Tumor Specific Transplantation Antigen
      TSU             Towson State University
      TT              Tetanus Toxoid
      TT              Triple Therapy
      TT              Trunk Type
      TTA             Tiny Toon Archive
      TTB             Technical Trading Bin
      TTC             Telecommunications Technology Council
      TTC             Telemetry Tracking and Control
      TTC             Terminating Toll Center
      TTC             TrueType Font Compressed
      TTD             Transient Tic Disorder
      TTE             Transthoracic Echocardiography
      TTF             Terminal Transaction Facility
      TTF             TrueType Font
      TTFN            Ta-Ta For Now
      TTI             Tension-Time Index
      TTL             Transistor-to-Transistor Logic
      TTN             Technology Transfer Network
      TTP             Trunk Test Panel
      TTR             Time-To-Repair
      TTS             Temporary Threshold Shift
      TTS             Text-to-Speech
      TTS             Through-the-Scope
      TTS             Transaction Tracking System
      TTS             Trunk-Time Switch
      TTY             Teletype
      TTY             Teletype Machine
      TTY             Teletypewriter
      TU              Tape Unit
      TU              Technology Utilization Program
      TU              Todd Unit
      TU              Toxic Unit
      TU              Trunk Unit
      TUC             Terminal Usage Charge
      TUI             Text-Based User Interface
      TUR             Trunk Utilization Report
      TUT             Tampere University of Technology
      TUT             Transistor Under Test
      TUT             Tutorial
      TUT             Tutorial File
      TV              Tidal Volume
      TV              Total Volume
      TV              Trichomonas Vaginalis
      TV              Tricuspid Valve
      TVH             Total Vaginal Hysterectomy
      TVM             The Virtual Meeting
      TVT             Television Tube
      TWA             Time-Weighed Allowance
      TWA             Time-Weighted Average
      TWAR            Taiwan Acute Respiratory Strain of Chlamydia Pneumoniae
      TWAS            Third World Academy of Sciences
      TWB             Terrestrial Wide-Band Networking
      TWT             Travelling Wave Tube
      Tx              Therapy
      TX              Thromboxane
      TX              Transmit
      Tx              Transplant
      Tx              Treatment
      TXA2            Thromboxane A2
      TXB2            Thromboxane B2
      TXD             Transmit Data
      TXD             Transmitted Data
      TXT             Text
      TZ              Treatment Zone
      U               Unit
      U               Uracil
      U               Uranium
      U               Utility
      UA              User Agent
      UAA             United for AIDS Action
      UADPS           Uniform Automatic Data Processing System
      UAE             Unrecoverable Application Error
      UAO             Upper Airway Obstruction
      UAPDU           User Agent Protocol Data Unit
      UAR             User Action Routine
      UARS            Upper Atmosphere Research Satellite
      UART            Universal Asynchronous Receiver Transmitter
      UAV             Unmanned Air Vehicle
      UB              University of Baltimore
      UBC             Universal Buffer Controller
      UBLL            University of Baltimore Law
      UC              Upper Case
      UCA             User Computer Address
      UCB             Unit Control Block
      UCB             University of California at Berkeley
      UCC             Uniform Code Council
      UCD             Uniform Call Distribution
      UCL             Universal Communications Language
      UCL             University College London
      UCL             User Control List
      UCLA            University of California at Los Angeles
      UCR             Unconditioned Response
      UCS             Universal Character Set
      UCS             Universal Classification System
      UCSB            University of California of Santa Barbara
      UCSC            University of California at Santa Cruz
      UCW             Unit Control Word
      UDB             Unified DataBase
      UDC             Universal Decimal Classification
      UDC             User-Defined Commands
      UDE             Universal Data Exchange
      UDF             User-Defined Functions
      UDK             User Defined Key
      UDP             Uridine Diphosphate
      UDP             User Datagram Protocol
      UDP             User Diagram Protocol
      UDS             Universal Data Systems
      UDVM            Universal Data Voice Multiplexer
      UFC             Unrestricted Frequency Changer
      UFN             User Friendly Naming
      UFS             User Friendly Searching
      UFS             Universal File System
      UFS             Unix File System
      UG              User-Group
      UGI             Upper Gastrointestinal Series
      UHDDS           Uniform Hospital Discharge Data Set
      UHF             Ultra-High Frequency
      UHQ             Ultra-High Quality
      UI              Uniformity Issues
      UI              Unix International
      UID             User-ID
      UIL             User Interface Language
      UIM             Ultra-Intelligent Machine
      UIP             User Interface Program
      UITP            Universal Information Transport Plan
      UKIRT           United Kingdom Infra-Red Telescope
      UL              Upload
      ULA             Uncommitted Logic Array
      ULANA           Unified Local-Area Network Architecture
      ULCC            University of London Computer Center
      ULN             Upper Limit of Normal
      ULSI            Ultra-Large-Scale Integration
      UMA             Upper Memory Area
      UMB             Upper Memory Block
      UMBC            University of Maryland Baltimore County
      UMCP            University of Maryland College Park
      UMD             University of Maryland
      UMES            University of Maryland Eastern Shore
      UML             University of Manitoba Libraries
      UMLL            University of Maryland Law Library
      UMLS            Unified Medical Language System
      UMN             Upper Motor Neuron
      UMOS            United Migrant Opportunity Services
      UMS             University of Maryland System
      UMUC            University of Maryland University College
      UNA             Universal Network Architecture
      UNC             Universal Naming Convention
      UNCED           United Nations Conference on Environment and Development
      UNCLE           United Network Command for Law Enforcement
      UNDP            United Nations Development Program
      UNICS           Uniplex Information Computer Services
      UNIVAC          Universal Automatic Computer
      UNMA            Unified Network Management Architecture
      UNOS            United Network For Organ Sharing
      UNS             University of Minnesota Networking Services
      UNV             United Nations Volunteers
      UP              User Program
      UPA             Ultimate Players Association
      UPC             Universal Product Code
      UPI             United Press International
      UPL             Universal Programming Language
      UPL             User Program Language
      UPM             User Profile Management
      UPS             Uninterruptable Power Supply
      UPS             United Parcel Service
      UR              Unit Record
      UR              User Requirement
      URA             Uniformly Redundant Array
      URB             Urban
      URI             Uniform Resource Identifiers
      URI             Upper Respiratory Infection
      URL             Uniform Resource Locators
      URP             Undergraduate Research Project
      URSN            Unique Resource Serial Numbers
      URSP            Undergraduate Research Study Program
      URTI            Upper Respiratory Tract Infection
      US              Ultrasonography
      US              Ultrasound
      US              Unit Separator
      USA             United Software Association
      USAC            United States Answer Center
      USACNII         U S  Advisory Council on the National Information Infrastructure
      USAID           U S  Agency for International Development
      USAN            United States Adopted Names
      USAN            University Satellite Network
      USART           Universal Synchronous/Asynchronous Receiver Transmitter
      USASCII         USA Standard Code For Information Interchange
      USC             University of Southern California
      USCLHO          U S  Conference of Local Health Officers
      USDA            United States Department of Agriculture
      USDC            Universal Switched Data Capability
      USDN            United States Digital Network
      USES            United States Employment Service
      USGB            Ultrasound of the Gallbladder
      USGS            United States Geological Survey
      USIA            United States Information Agency
      USL             Unix System Laboratories
      USO             United Service Organizations
      USO             Universal Service Order
      USO             Unix Software Operation
      USOC            Universal Service Order Code
      USP             United States Pharmacopeia
      USPHS           United States Public Health Service
      USPS            United States Postal Service
      USPSTF          US Preventive Services Task Force
      USPTO           United States Patent and Trademark
      USQ             Unsqueezed File
      USR             User Service Routines
      USRT            Universal Synchronous Receiver Transmitter
      USWB            United States Weather Bureau
      UT              Universal Time
      UT              Up Time
      UT              Utility
      ut              dict As Directed
      UTA             University of Texas at Austin
      UTAM            Unlicensed Transition and Management
      UTC             Coordinated Universal Time
      UTI             Universal Text Interchange
      UTI             Urinary Tract Infection
      UTM             Universal Transaction Monitor
      UTNET           University of Texas Network
      UTP             Unshielded Twisted-Pair
      UTR             Untranslated Region
      UTS             Universal Timesharing System
      UTSN            University of Texas System Network
      UTTC            Universal Tape-To-Tape Converter
      UUCP            Unix-Unix Copy Protocol
      UUG             Unix User Group
      UUID            Universal Unique Identifier
      UUT             Unit-Under-Test
      UV              Ultraviolet
      UV              Ultraviolet Radiation
      UVGI            Ultraviolet Germicidal Irradiation
      UWIN            University of Washington Information Navigator
      UXU             Underground Experts United
      V               Vanadium
      V               Video
      V               Virtual
      V               Voice
      V               Volt
      V(d)            Volume of Distribution
      V-Z             Varicella-Zoster
      VA              Department of Veterans Affairs
      VA              Video Amplifier
      VA              Virtual Address
      VA              Visual Activity
      VA              Volt Ampere
      VAB             Voice Answer Back
      VAC             Value-Added Carrier
      VACC            Value-Added Common Carrier
      VAD             Value-Added Dealer
      VAE             Voluntary Active Euthanasia
      VAERS           Vaccine Adverse Event Reporting System
      VAFC            VESA Advanced Feature Connector
      VAK             Visual Auditory Kinesthetic
      VAL             Validity Check File
      VAL             Voice Application Language
      VAM             Virtual Access Method
      VAN             Value-Added Network
      VANS            Value-Added Network Service
      VAP             Value-Added Process
      VAR             Value-Added Remarketers
      VAR             Value-Added Reseller
      VAR             Variable
      VAR             Visual-Auditory Range
      VAS             Visual-Analog Scales
      VASD            Value-Added Systems Distributor
      VAST            Virtual Archive Storage Technology
      VAT             Atrial Synchronous Pacer
      VAT             Value-Added Tax
      VAT             Virtual Address Translation
      VAT             Voice-Activated Typewriter
      VAU             Volume Allocation Unit
      VAX             Virtual Address Extension
      VB              Visual Basic
      VB              Virtual Body
      VBA             Visual Basic for Applications
      VBD             Voluntary Blood Donors
      VBE             VESA BIOS Extension
      VBI             Vertical Blanking Interva[
      VBR             Ventricular-Brain Ratios
      VBS             Veronal Buffered Saline
      VBX             Visual Basic File
      VC              Virtual Circuit
      VC              Virtual Corporation
      VC              Vital Capacity
      VCA             Viral Capsid Antigen
      VCA-EB          Viral Capsid Antigen Epstein-Barr
      VCAM            Vascular Cell Adhesion Molecule
      VCD             Virtual Communications Driver
      VCF             Vaginal Contraceptive Film
      VCIS            Voice Case Information System
      VCPI            Virtual Control Program Interface
      VCR             Video Cassette Recorder
      VCS             Version Control System
      VCS             View Control System
      VCS             Virtual Circuit System
      Vd              Apparent Volume Distribution
      VD              Vapor Density
      VDD             Virtual Device-Driver
      VDDM            Virtual Device Driver Manager
      VDE             Video Display Editor
      VDFM            Virtual Disk File Manager
      VDG             Video Display Generator
      VDI             Video Device Interface
      VDI             Virtual Device Interface
      VDISK           Virtual Disk
      VDM             Virtual Device Metafile
      VDM             Virtual DOS Machine
      VDS             Virtual DMA Services
      VDT             Vibration Disappearance Threshold
      VDT             Video Display Terminal
      VDT             Video Display Tube
      VDU             Video Display Unit
      VDU             Visual Display Unit
      VE              Virtual Environment
      VE              Visual Efficiency
      VEE             Venezuelan Equine Encephalitis
      VEG             Virtual Environment Generator
      VELACS          Verification of Liquefaction Analysis by Centrifuge Studies
      VEMM            Virtual Expanded Memory Manager
      VEP             Visual Evoked Potential
      VER             Verify
      VER             Visual Evoked Responses
      VERR            Verify Read Access
      VERW            Verify Write Access
      VESA            Video Electronics Standards Association
      VF              Video Frequency
      VF              Vision Field
      VF              Voice Frequency
      VFP             Vertical Forms Printing
      VFPA            Vector Floating-Point Accelerator
      VFS             Virtual File System
      VFU             Vertical Format Unit
      VFY             Verify
      VG              Voice Grade
      VGA             Video Graphics Array
      VGB             Voice Grade Budget
      VGC             Video Graphics Controller
      VGI             Virtual Graphics Interface
      VH              Virtual Hospital
      VHD             Very-High Density
      VHF             Very-High-Frequency
      VHF             Very-High-Frequency Band
      VHM             Virtual Hardware Monitor
      VHS             Very-High-Speed
      VHS             Video Home System
      VHS             Virtual Host Storage
      VHSIC           Very-High-Speed Integrated Circuit
      VIA             Vax Information Architecture
      VIC             Variable Instruction Computer
      VIDAC           Visual Information Display and Control
      VIFA            Victoria Free-Net Association
      VIFP            Victorian Institute of Forensic Pathology
      VIG             Vaccine Immune Globulin
      VIM             Vendor-Independent Messaging
      VINE            Veritas Information Network
      VINES           Virtual Network Operating System
      VINES           Virtual Network Software
      VINES           Virtual Network System
      VIO             Virtual Input-Output
      VIP             Variable Information Processing
      VIP             Visual Information Projection
      VIPP            Variable Information Processing Package
      VIPS            Video Image Printer Systems
      VIS             Video Information System
      VIS             Voice Information System
      VISC            Visualization In Scientific Computing
      VITA            Volunteers in Technical Assistance
      VITAL           Virtually Integrated Technical Architecture Lifecycle
      VL              Ventral Lateral Nucleus
      VL              Volume Label
      VLA             Vertical Long Axis
      VLA             Very-Large Array
      VLB             VESA Local Bus
      VLBI            Very Long Baseline Interferometry
      VLBW            Very-Low Birth Weight
      VLCD            Very-Low-Calorie Diet
      VLDB            Very-Large-Database
      VLDL            Very-Low-Density Lipoprotein
      VLF             Very-Low-Frequency
      VLF             Very-Low-Frequency Band
      VLM             Virtual Loadable Module
      VLP             Virus-like Particles
      VLSI            Very Large Scale Integration
      VLT             Variable List Table
      VLT             Video Lookup Table
      VM              Virtual Machine
      VM              Virtual Memory
      VM              Voltmeter
      VMA             Virtual Machine Assist
      VMA             Virtual Memory Address
      VMAP            Virtual Machine Performance Monitor
      VMB             Virtual Machine Boot
      VMB             Voice Mail Box
      VMCF            Virtual Machine Communications Facility
      VMCMS           Virtual Machine Conversational Monitor System
      VME             Virtual Machine Environment
      VME             Virtual Memory Environment
      VME             Virtual Memory Extension
      VME             Vitual Machine Environment
      VMM             Virtual Machine Monitor
      VMM             Virtual Memory Manager
      VMOS            Vertical Metal Oxide Semiconductor
      VMPPF           Virtual Machine Performance Planning Facility
      VMS             Virtual Memory System
      VMS             Voice Mail System
      VMS             Voice Management System
      VMS             Voice Messaging System
      VMT             Virtual Memory Technique
      VMTSS           Virtual Machine Time-Sharing System
      VMV             Vision-Mission-Values
      VMX             Voice Message Exchange
      VNET            Virtual Network
      VNF             Virtual Network Feature
      VNLF            Via Net Loss Factor
      VNTR            Variable Number Tandem Repeat
      VO              Verbal Order
      VOC             Volatile Organic Compounds
      VOF             Volume of Fluid
      VOID            Voice of Industrial Design
      VOIS            Voice-Operated Information System
      VOL             Volume
      VOM             Volt-Ohmmeter
      VOR             Voice-Operated Relay
      VOS             Verbal Operating System
      VOS             Voice-Operated Switch
      VOT             Virtual On-Site Technology
      VOX             Voice-Operated Control
      VP              View Package
      VP              Visual Processing
      VPA             Valproic Acid
      VPA             Volume Purchase Agreement
      VPD             Virtual Printer Device
      VPDS            Virtual Private Data Service
      VPF             Vascular Permeability Factor
      VPL             Visual Programming Languages
      VPN             Virtual Private Network
      VPT             Vibratory Perception Threshold
      VPU             Video Processing Unit
      VPUG            Ventura Publishing User Group
      VQL             Variable Quantizing Level
      VR              Very Rare
      VR              Virtual Reality
      VR              Virtual Route
      VR              Voltage Regulator
      VRA             Visual Reinforcement Audiometry
      VRA             Visual Response Audiometry
      VRAM            Video RAM
      VRAM            Video Random Access Memory
      VRC             Vertical Redundancy Check
      VRC             Visible Record Computer
      VRM             Virtual Resource Manager
      VROM            Voluntary Range of Motion
      VROOMM          Virtual Real-time Object-Oriented Memory Manager
      VRS             Vacuum Relief System
      VRS             Voice-Response System
      VRS             WordPerfect Graphics Driver File
      VRST            Virtual Reality Software and Technology
      VRU             Voice-Response Unit
      VS              Variable Speed
      VS              Virtual Storage
      VS              Vital Signs
      VSA             Variant-Specific Surface Antigen
      VSAM            Virtual Sequential Access Method
      VSAM            Virtual Storage Access Method
      VSAT            Very Small Aperture Terminal
      VSAT            Very Small Aperture Transmission
      VSC             Variable Speed Control
      VSC             Video System Controller
      VSCP            Vital Statistics Cooperative Program
      VSD             Ventricular Septal Defect
      VSE             Virtual Storage Extended
      VSF             Vertical Scanning Frequency
      VSI             Virtual Screen Interface
      VSIM            Virion-Specific Inhibitory Molecule
      VSLI            Very Large Scale Integration
      VSM             Vascular Smooth Muscle
      VSM             Virtual Storage Management
      VSM             Visiting Staff Member
      VSOS            Virtual Storage Operating System
      VSP             Virtual Single Processor
      VSPC            Visual Storage Personal Computing
      VSR             Voice Storage-and-Retrieval
      VSS             Vital Signs Stable
      VSS             Voice Storage System
      VSSP            Voice-Switch Signaling Point
      VT              Video Tape
      VT              Video Terminal
      VT              Virtual Terminal
      VTACH           Ventricular Tachycardia
      VTAM            Virtual Telecommunications Access Method
      VTAME           Virtual Telecommunicaitons Access Method Entry
      VTI             Virtual Terminal Interface
      VTM             Virus Transport Media
      VTP             Virtual Terminal Protocol
      VTR             Video Tape Recorder
      VTS             Video Teleconferencing System
      VTX             Videotex
      VU              Voice Unit
      VU              Voltage Unit
      VU              Volume Unit
      VUIS            Virtually Unified Information Service
      VUP             Vax Unit of Performance
      VV              Vaccinia Virus
      VWB             Visual WorkBench
      VWL             Variable Work Length
      VWO             Valves Wide Open
      VXD             Virtual Device Drivers
      VZIG            Varicella-Zoster Immune Globulin
      VZV             Varicella-Zoster Virus
      W               Tungsten
      W               Watt Unit of Power Measurement
      W               Watts
      W               Wide
      W               Width
      W               Word
      W               Write
      W/O             Without
      W/S             Words-Per-Second
      wa              While Awake
      WAAC            Western Association for Art Conservation
      WABI            Windows Application Binary Interface
      WAC             World Archaeological Congress
      WADS            Wide-Area Data Service
      WAIS            Wechsler Adult Intelligence Scale
      WAIS            Wide-Area Information Server
      WAITS           Wide-Area Informtion Transfer System
      WAN             Wide-Area Network
      WAP             Work Assignment Procedure
      WAT             Word Association Test
      WATS            Wide-Area Telecommunication Service
      WATS            Wide-Area Telephone System
      WAV             Waveform Audio File
      WAV             Windows Audio Video
      WAV             Windows Sound File
      WB              Western Blot
      WB              Wide Band
      WBC             White Blood Count
      WBI             Whole-Bowel Irrigation
      WBS             Work Breakdown Structure
      WBT             Wet Bulb Temperature
      WC              Wire Center
      WC              Without Charge
      WCS             Writable Control Store
      WD              Well-Developed
      WD              White Dwarf
      WD              Wiring Diagram
      WD              Word
      WD              Working Draft
      WDC             World Data Center
      WDT             Watch-Dog Timer
      WE              Write Enable
      WEDI            Workgroup for Electronic Data Interchange
      WEE             Western Equine Encephalitis
      WELL            Whole Earth Electronic Link
      WF              White Female
      WFR             Wheal-and-Flare Reaction
      WFW             Windows For Workgroups
      WG              Working Group
      WGN             White Gaussian Noise
      WGS             Work Group System
      WHCA            White House Communications Agency
      WHI             Women's Health Initiative
      WHO             World Health Organization
      WHOLIS          World Health Organization Library Information System
      WHOSIS          World Health Organization Statistical Information System
      WHOSS           World Health Organization Staging System
      WHR             Waist Circumference To Hip Circumference
      WI              Working Instructions
      WICHE           Western Interstate Commission on Higher Education
      WIF             Water-Insoluble Fraction
      WIDE            Widely Integrated Distributed Environment
      WIP             Work-In-Progress
      WIP             Workcenter Information Package
      WIS             Worldwide Information System
      WISC            Wechsler Intelligence Scale for Children
      WITS            Washington Interagency Telecommunications System
      WIX             Windows Information Exchange
      Wk              Week
      WK1             Worksheet File
      WKB             Workbook
      WKE             Worksheet
      WKQ             Spreadsheet
      WKS             Worksheet
      WKZ             Compressed Spreadsheet
      WLN             Western Library Network
      WM              White Male
      WM              Work Manager
      WMF             Windows Metafile File
      WMP             Waste Management Plan
      WMS             Warehouse Management System
      WN              Well-Nourished
      WN              Wet Nebulizer
      WNIC            Wide-Area Network Interface Co-Processor
      WNIL            Whois and Network Information Lookup Service
      WNIM            Wide-Area Network Interface Module
      WNL             Within Normal Limits
      WNOC            Wide Network Operation Center
      WNT             Windows New Technology
      WO              Work-Order
      WO              Write-Only
      WOB             Work of Breathing
      WOCE            World Ocean Circulation Experiment
      WOM             Write-Only-Memory
      WOM             Write-Optional-Memory
      WOP             Without Pain
      WORM            Write Once
      WORM            Write Once Read Many
      WOSA            Windows Open Systems Architecture
      WP              Wedge Pressure
      WP              Whirlpool
      WP              Whole-Protein
      WP              Word-Processing
      WP              WordPerfect
      WP              Working Paper
      WP              Working Profile
      WP              Write-Protect
      WPB             Whirlpool Bath
      WPE             World Pirate Echo
      WPG             Graphics File
      WPG             WordPerfect Graphics
      WPG             WordPerfect Graphics Format
      WPI             Worcester Polytechnic Institute
      WPK             Keyboard File
      WPM             Macro File
      WPM             WordPerfect Macro
      WPM             Words-Per-Minute
      WPS             Windows Printing System
      WPS             Word Processing Software
      WPS             Words-Per-Second
      WPS             Workstation Publishing System
      WPW             Wolff-Parkinson-White Syndrome
      WQ!             Compressed Spreadsheet File
      WQ1             Spreadsheet File
      WQF             Workstation Query Facility
      WR              Write
      WRC             Workstation Resource Center
      WRI             Windows Write Document
      WRT             With Regards To
      WRT             With Respect To
      WS              Wasting Syndrome
      WS              Weapons Science
      WS              Work Space
      WS              Work Station
      WS              Work Status
      WS              Working Storage
      WSMIS           Weapon Systems Management Information System
      WSN             Wang System Networking
      WSP             Work Simplification Program
      WSS             Wang Station Sets
      WSS             Windows Sound System
      WT              Wait-Time
      Wt              Weight
      WT              Write-Through
      WTE             Whole Time Equivalent
      WTO             Write-To-Operator
      WTOR            Write-To-Operator With Reply
      WW              Worldwide
      WWAs            Women With AIDS
      WWFO            World Wide Field Operations
      WWTP            Wastewater Treatment Plant
      WWW             World-Wide-Web
      WYSIWYG         What-You-See-Is-What-You-Get
      X               Times
      X               Transmission
      XA              Extended Architecture
      XBAR            Crossbar
      XBM             Extended Basic Mode
      XBT             Crossbar Tandem
      XCF             Experimental Computing Facility
      XCHG            Exchange
      XCMD            External Command
      XCOST           Transfer Cost
      XDE             Extended Development Environment
      XDP             Extended Data Processing
      XDR             External Data Representation
      Xe              Xenon
      XFCB            Extended File Control Block
      XFCN            External Function
      XFER            Transfer
      XGA             Extended Graphics Adapter
      XGA             Extended Graphics Array
      XIP             Execute-In-Place
      XL              X-Linked
      XLAT            Translate
      XLAT            Translate By Table Lookup
      XLM             Excel Macro Language
      XLMR            X-Linked Mental Retardation
      XLR             X-Linked Recessive
      XMA             Chiasma
      XMA             Expanded Memory Adapter
      XMIT            Transmit
      XMM             Extended-Memory Manager
      XMS             Extended-Memory Specification
      XMT             Transmit
      XMTL            Transmittal
      XN              Night Blindness
      XNS             Xerox Network Systems
      XO              Executive Officer
      XOR             Boolean Exclusive OR
      XOR             Exclusive Or
      XR              External Reset
      XRD             X-Ray Diffraction
      XREF            Cross Reference
      XRF             Extended Recovery Facility
      XRF             Extended Reliability Feature
      XRM             X-Resource Manager
      XRT             X-Ray Therapy
      XSA             Cross-Section Area
      XT              Extended Technology
      XTAL            Crystal
      XTC             Extended Test Controller
      XTC             External Transmit Clock
      XTP             Express Transfer Protocol
      XU              X Unit
      XUV             X-Ray Ultraviolet
      y               Year
      Y               Yttrium
      Y/A             Years of Age
      YA              Yet Another
      YACC            Yet Another Compiler-Compiler
      YAG             Yttrium-Argon-Garnet Laser
      YB              Year Book
      Yb              Ytterbium
      YCB             Yeast Carbon Base
      YDIC            Youth Development Information Center
      YIG             Yttrium-Iron-Garnet
      YLD             Young Lawyers Division
      YO              Years Old
      YOB             Year of Birth
      YOLS            Years of Life Saved
      YP              Yellow Pages
      YPLL            Years of Potential Life Lost
      yr              Year
      YRBS            Youth Risk Behavior Survey
      YS              Yield Strength
      YSO             Young Stellar Object
      YTD             Year-To-Date
      YY              Year
      YY/MM/DD        Year/Month/Day
      Z               Atomic Number
      Z               Zenith
      Z               Zoom
      ZAMS            Zero Age Main Sequence
      ZB              Zero Beat
      ZBI             Zero Bit Insertion
      ZCE             Zone of Critical Elasticity
      ZD              Zero Defect
      ZDS             Zenith Data Systems
      ZDV             Zidovudine
      ZEEP            Zero End-Expiratory Pressure
      ZETA            Zero Energy Thermonuclear Assembly
      ZEV             Zero-Emissions Vehicle
      ZF              Zero Flag
      ZG              Zero Gravity
      ZI              Zonal Index
      ZIF             Zero-Insertion Force
      ZIG             Zoster Immune Globulin
      ZIP             Compressed File
      ZIP             Zone Improvement Plan
      ZIP             Zone Information Protocol
      ZIP             Zoster Immune Plasma
      ZISC            Zero Instruction Set Computer
      ZMRI            Zinc Metals Research Institute
      Zn              Zinc
      ZO              Zoom-Out
      ZOO             Compressed File
      ZPA             Zone of Polarizing Activity
      ZPG             Zero Population Growth
      ZPP             Zinc Protoporphyrin
      ZSL             Zero-Slot LAN
      ZST             Zone Standard Time
      ZT              Zone Time
      Zyg             Zygotene
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