At

Privately endowed university in Kingston, Ontario, Canada. It was founded in 1841 and modeled after the University of Edinburgh. It is a comprehensive research institution, offering undergraduate, graduate, and professional degrees in most major fields. Research facilities include centres for the study of international relations, industrial relations, and natural resources.

Learn more about Queen's University at Kingston with a free trial on Britannica.com.

AT may mean:

• Aarne-Thompson classification system
• AT Field, a force field in the anime Neon Genesis Evangelion
• Acceptance test
• Air Trecks, fictional inline skates in the manga and anime Air Gear
• Alimentary tract
• Atmel Corporation
• Anaerobic threshold
• Análisis Transaccional (Spanish "Transactional analysis"), a psychological method
• Anguilla, a World Meteorological Organization country code
• Anti-tamper, resistance to tamper of a product, package, or system
• 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
• AT form factor for motherboards and computer cases
• 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
• .at is the Internet country code top-level domain for Austria
• Automatic transmission
• 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), to schedule tasks to be performed at a later date
• technical atmosphere (symbol), physical unit of pressure