View source for AT

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{{wiktionary|at}}

'''AT''' or '''at''' may refer to:
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== Geography ==
===Austria===
* [[Austria]] (ISO 2-letter country code)
* [[.at]], Internet country code top-level domain

===United States===
* [[Atchison County, Kansas]] (county code)
* The [[Appalachian Trail]] (A.T.), a 2,180+ mile long mountainous trail in the Eastern United States

===Elsewhere===
* [[Antigua and Barbuda]], World Meteorological Organization country code
* [[Ashmore and Cartier Islands]] (FIPS 10-4 territory code, and obsolete NATO country code) 
* [[At, Bihar]], village in Aurangabad district of Bihar, India
* [[Province of Asti]], Italy (ISO 3166-2:IT code)
* [[Australia]], LOC MARC code

== Politics ==
* [[Awami Tahreek]] a left-wing Pakistani political party

== Science and technology ==
=== Computing ===
* @ (or "[[at sign]]"), the punctuation symbol now typically used in e-mail addresses and tweets)
* [[at (command)]], used to schedule tasks or other commands to be performed or run at a certain time
* [[IBM Personal Computer/AT]]
** [[AT (form factor)]] for motherboards and computer cases
** AT connector, a five-pin [[DIN connector]] for a keyboard
* [[AT Protocol]], a decentralized social networking protocol by [[Bluesky]]
* The [[Hayes command set]] for computer modems (each command begins with the character string "AT")

===Biology and medicine===
* [[Anaerobic threshold]], in physiology
* ''Análisis transaccional'' (Spanish for "[[transactional analysis]]"), a psychological method
* [[Antithrombin]], a small protein molecule
* [[Ataxia–telangiectasia]], an immunodeficiency disorder
* [[Athletic training]]
* [[Atrial tachycardia]]

===Physics and chemistry===
* [[Astatine]] (symbol At), a chemical element
* [[Ampere-turn]] (symbol A t), an International System of Units (MKS) unit of magnetomotive force
* [[Attotesla]] (symbol aT), 10<sup>−18</sup> tesla, an SI derived unit of magnetic flux density
* [[Technical atmosphere]] (symbol at), a physical unit of pressure

===Other uses in science and technology===
* [[Acceptance testing]], in engineering
* [[Appropriate technology]], an ideological movement to scale technology to be appropriate to its context
* [[Assistive technology]], devices for people with disabilities
* [[Anti-tank warfare]]
* [[Automatic transmission]], in vehicles

==Other uses==
* At, a [[preposition]]
* [[At (cuneiform)]], a cuneiform sign
* At, 1/100 of a [[Lao kip]], a unit of currency
* AT ({{langx|uk|Акціонерне товариство|links=no}}), a Ukrainian form of company, equivalent to [[joint-stock company#Ukraine|joint-stock company]]
* [[Aarne–Thompson classification system]], used to classify folktales
* [[Archive Team]], a digital preservation group
* [[Aliança da Terra]], a Brazilian non-governmental organization
* [[Alternative Tentacles]], an independent record label
* [[Auckland Transport]], New Zealand, a public transport agency
* [[Audiotool]], a [[Digital audio workstation]]
* [[Autolinee Toscane]], Italy, a public transport agency
* [[Aviation electronics technician (United States Navy)]], a job specialty
* [[Royal Air Maroc]] (IATA airline designator AT)
* A US Navy hull classification symbol: [[List of auxiliaries of the United States Navy#Fleet tugs (AT)|Fleet tug (AT)]]

==See also==
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* {{look from|at}}
* {{look from}}
* {{in title}}
* [[AT1 (disambiguation)]]
* [[ATS (disambiguation)]]

{{disambiguation}}

[[hu:IBM-kompatibilis PC#Az AT szabvány]]