What does ATI stand for?

Abdominal Trauma Index - Medicine (DMAA)

Above-Threshold Ionization (MCD)

Acetylene-Terminated Imide - Polymer technology

Achilles Tendon Inflammation - Medicine (MELL)

Acoustic Telephone Interface - Telecommunications

Action Tape In (SAUS)

Active Transfer Initiate (ACAE)

Actual Time of Interception

Advanced Technical Information (VLIE)

Advanced Technologies (or Technology) Incorporated (SAUO)

Advanced Technology Innovation - Computer science

Advanced Telecomunications Institute (VERA)

Advanced Terminal Interceptor

Aerial Tuning Inductance

Aeroceuticals, Inc. (EFIS)

Aerosol Techniques, Incorporated (SAUO)

Aero Transporti Italiani SpA - Italy - ICAO designator (FAAC)

Agricultural Training Institute (SAUO)

Airborne Track Illuminator - Military (DOMA)

Air Target Indicator

Air Technical Index - Air Force

Air Technical Information - Used by Armed Services Technical Information Agency - later, Defense Documentation Center - to accession and identify documents

Air Technical Intelligence - Air Force

AirTouch Communications - NYSE symbol

Airtouch Communications Co. - Formerly, PacTel Corp. - NYSE symbol (SAG)

Air Transport Indicator (HLLA)

Air Transport Intelligence - United Kingdom (GDD)

Alexander Technique International - Association (EA)

Allegheny Technologies - Company symbol

Allied Telesyn International (SAUS)

Allied Telesyn International Corp.

All Tech Industries Inc. (EFIS)

Alpha-Trypsin Inhibitor - Medicine (EDAA)

American Technology & Information, Inc. - Vancouver Stock Exchange symbol

American Technology Institute (SAUO)

American Telco, Inc. - Telecommunications service (TSSD)

American Television Incorporated (SAUO)

American Television Institute (SAUO)

American Toy Institute (SAUS)

American Traffic Information, Inc. - Commercial firm

American Travel Inns (EA)

American Trousers Institute (SAUS)

American Trousers Institute Amtel Inc. (SAUO)

Analog Threshold Logic (SAUS)

Anodizing Technologies, Inc. - Commercial firm

Antenna Tuning Inductance (IAA)

Any Time Interrogation (TELEC)

Applied Technologies, Inc. (EFIS)

Apprentice Training Incentive

Appropriate Technology International (EA)

Aptitude Testing for Industry - Commercial firm

Aptitude-Treatment Interactions - Education

Argonne Theory Institute

Armored Transportation Institute (EA)

Army Training Instruction (SAUS)

Artic - NCIC firearms make code (NCIC)

Artigas - Uruguay - Airport symbol (OAG)

Artillery Target Intelligence (MCD)

Asbestos Technical Institute (SAUO)

Asbestos Textile Institute (EA)

Asociacion de Tecnicos de Informatica - Association of Spanish Information Technology Professionals - Spain (DDC)

Asphalt Tile Institute (SAUS)

Assessment Technology, Inc. - Commercial firm

Associated Taxpayers of Idaho (EARSL)

Associated Telemanagement, Inc. - Newburyport, MA - Telecommunications (TSSD)

Associate of the Textile Institute - British

Association of Teachers of Italian - British

Association of Technical Institutions (EY)

Atico - Peru - Seismograph station code, US Geological Survey (SEIS)

ATI Medical, Inc. - AMEX symbol (COMM)

AtLANta Technologies, Inc. - Atlanta, GA - Telecommunications service (TSSD)

A-Track Initiator (SAA)

Attie - Language code (ETLW)

Attitudes toward Industrialization - Psychology

Attribute-Treatment Interaction

Audiometer Telephone Interface - for the hearing-impaired

Automated Tactical Intelligence (ACAE)

Automated Technical Information (MCD)

Automatic Target Identification

Automatic Test Inhibit (VLIE)

Automatic Track Initiation

Automatic Transfer Initiate (TIMI)

Automation of Technical Information - Aviation refueling systems (MLEX)

Automation Techniques, Inc.

Automation Techniques, Incorporated (SAUO)

Auxiliary Tape Input (VLIE)

Average Total Inspection - QCR

Iberian Yacht, Miami, FL - Manufacturer code for watercraft hull identification number (USCG)

Tilley Public Library, Alberta - Library symbol - National Library of Canada (NLC)