AT

'AT' may mean:

★ AT Field, a force field in the anime Neon Genesis Evangelion

★ Acceptance test

★ Aero triangulation

★ Alimentary tract

★ Allied Telesyn

★ Anaerobic threshold

★ ''Análisis Transaccional'' (Spanish "Transactional analysis"), a psychological method

★ Anguilla, a World Meteorological Organization country code

★ Anti-tank weapons

★ Counter-terrorism, also known as "anti-terrorism" (AT)

★ Appalachian Trail

★ Aphex Twin

★ Appropriate Technology

★ Ashmore and Cartier Islands (FIPS 10-4 territory code and obsolete NATO country code

★ Assistive technology

★ IBM Personal Computer/AT

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★ AT form factor for motherboards and computer cases

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★ The common name for the 5-pin DIN keyboard connector

★ Ataxia telangiectasia, an immunodeficiency disorder

★ Atchison County, Kansas (county code)

★ Attack Team (game), a 2000 computer game

★ Audit trail

★ Austria's ISO, 2-letter country code

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★ .at is the Internet country code top-level domain for Austria

★ Auto Trend

★ Automatic transmission

★ Aviation Electronics Technician (United States Navy ratings), an enlisted rating in the United States Navy

★ Hayes command set for computer modems (all commands begin with the characters "AT")

★ Royal Air Maroc (IATA airline designator)

★ Abel Tasman, a seventeenth century Dutch explorer and merchant
'At' may mean:

★ Ampere-turn (symbol), an International System of Units (MKS) unit of magneto-motive force

★ Astatine, the chemical symbol for the element

★ a subdivision equal to 1/100 of a Kip, the unit of currency in Laos
'aT' may mean:

★ attotesla, an SI unit of magnetic flux density
'at' may mean:

★ "'@'", the punctuation symbol now typically used in e-mail addresses

★ at (Unix command), to schedule tasks to be performed at a later date

★ technical atmosphere (symbol), physical unit of pressure