AST 75630 225302913 2008-07-12T23:58:31Z Nomadcowboy 324778 {{Wiktionarypar|AST|Ast|ast}} '''AST''' is a [[three letter acronym|three-letter abbreviation]] that stands for a number of different things. ;In science and technology * [[Aspartate transaminase]], an enzyme associated with liver parenchymal cells * [[Abstract syntax tree]], a finite, labeled, directed tree used in computer science * [[Asynchronous System Trap]]s, a mechanism used in several computer operating systems * [[Andrew S. Tanenbaum]], a computer scientist (often uses this acronym as his identifier) ;In maths * [[Alternating series test]], a method used to prove that infinite series of terms converge * [[Alternative set theory]], an alternative mathematical approach to the concept of set ;Organisations and companies * [[AST Research|AST Research, Inc.]], a defunct personal computer manufacturer * [[Association for Software Testing]], a nonprofit organization dedicated to advancing software testing ;In education * [[ACT Scaling Test]], a series of aptitude tests taken by Year 12 students in ACT, Australia * [[Alpha Sigma Tau]], a national collegiate sorority of the United States * [[Atlantic School of Theology]], a ecumenical university in Atlantic Canada * [[Conroe ISD Academy of Science and Technology]], a specialized magnet school of science and technology in Conroe, Texas * [[Avalanche Skills Training]], a standardized form of avalanche training in Canada ;In politics and government * [[Office of Commercial Space Transportation]], a branch of the US Federal Aviation Administration * [[Aviation Survival Technician]], the US Coast Guard's airborne "rescue swimmers" * [[Alaska State Troopers]], the state police force for the State of Alaska * [[Chadian Social Action|Action Sociale Tchadienne]], a defunct Chadian political party ;In transport * [[Astoria Regional Airport]], a public airport of Clatsop County, Oregon, USA (FAA Identifier: AST) * [[Aston railway station]], a railway station in Aston in Birmingham, England (National Rail code: AST) ;Time zones * Atlantic Standard Time — [[UTC-4]] * Alaska Standard Time — [[UTC-9]] * Arabia Standard Time — [[UTC+3]] ;Other uses * [[Assured shorthold tenancy]], a form of Assured tenancy with limited security of tenure * [[Asturian language]], a Romance language spoken in Asturias, Spain (ISO 639 alpha-3, ast) {{disambig}} [[de:Ast (Begriffsklärung)]] [[eo:AST]] [[fr:AST]] [[it:AST]] [[ja:AST]] [[ksh:AST (Watt ėßß datt?)]] [[pl:AST]] [[sv:AST]]