AST

AST

AST is a 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 Traps, a mechanism used in several computer operating systems
* Andrew S. Tanenbaum, a computer scientist (often uses this acronym as his identifier)
* Above-ground Storage Tank, a tank used to store liquid products (usually fuel) above the ground

;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
*Allied Security Trust, a patent holding company
* AST Research, Inc., a defunct personal computer manufacturer
* Association for Software Testing, a nonprofit organization dedicated to advancing software testing
* AST Sports Science, Inc. , a leading sports nutrition research and development company#

* Air Service Training Ltd, a company formed by J D Siddeley in 1931 for the training of pilots and engineers, still trading today based in Perth, Scotland [http://www.airservicetraining.co.uk]

;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
*American School of Tegucigalpa

;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
* 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)


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Look at other dictionaries:

  • ast — ast·bury; ast·rex; bu·co·li·ast; chil·i·ast; cin·e·ast; di·a·skeu·ast; ec·cle·si·ast; ec·cle·si·ast·ry; ec·dys·i·ast; el·e·gi·ast; en·co·mi·ast; en·cy·clo·pe·di·ast; en·thu·si·ast; gym·na·si·ast; he·li·ast; hy·po·chon·dri·ast; or·gi·ast;… …   English syllables

  • AST — ist eine Abkürzung für: Anrufsammeltaxi, öffentliches Verkehrsmittel Abstract Syntax Tree, eine Baumstruktur in der Informatik das Enzym Aspartat Aminotransferase in der Krankengymnastik für Ausgangsstellung im Sport für Ausdauersportteam in der… …   Deutsch Wikipedia

  • Ast — Ast: Das altgerm. Wort mhd., ahd. ast, got. asts, mniederl. ast beruht mit verwandten Wörtern in anderen idg. Sprachen auf idg. *ozdo s »Ast, Zweig«, vgl. z. B. griech. ózos »Ast, Zweig« und armen. ost »Ast, Zweig«. Das idg. Wort ist eine alte… …   Das Herkunftswörterbuch

  • ăst — ĂST, ÁSTĂ, ăşti, aste, adj.dem. (antepus) (pop. şi fam.) Acest, această. ♢ loc. adv. (De) astă dată = acum. Astă noapte (sau iarnă, primăvară etc.) = în noaptea (sau iarna, primăvara etc.) imediat precedentă. [gen. dat. sg.: ăstui, astei şi… …   Dicționar Român

  • Ast — Sm std. (8. Jh.), mhd. ast, ahd. ast, as. ast Stammwort. Aus g. * asta m. Ast , auch in gt. asts (der i Stamm des Althochdeutschen ist wohl sekundär). Aus ig. (eur.) * ozdo m. Ast, Zweig , auch in gr. ózos und arm. ost. Vermutlich aus ** o sd o… …   Etymologisches Wörterbuch der deutschen sprache

  • Ast — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. {{{image}}}   Sigles d une seule lettre   Sigles de deux lettres > Sigles de trois lettres …   Wikipédia en Français

  • Ast [1] — Ast, Pflanzenteil, der aus einem früher vorhandenen Pflanzenteil mittels einer Knospe entsprungen ist und mit jenem in morphologischer Beziehung als ein Organ von gleicher Art und Bedeutung erscheint. Äste eines Baumes oder Strauches sind die… …   Meyers Großes Konversations-Lexikon

  • AST — Advanced Skills Teacher (AST) England, Wales Teachers who have passed a national assessment and been appointed to an AST post. The pay and conditions for ASTs are set out in the School Teachers Pay and Conditions Document (STPCD), which is… …   Law dictionary

  • -ast — [ast], der; en, en <Suffix, das sich mit fremdsprachigen, nur gebunden vorkommenden Substantiven verbindet>: kennzeichnet eine männliche Person in Bezug auf Beruf, Tätigkeit, Überzeugung, Haltung durch das im Basiswort Genannte: Cineast… …   Universal-Lexikon

  • Ast — Ast,der:1.〈inBretternusw.sichtbareAnsatzstelleeinesgroßenZweiges〉Astansatz·Knorren·Astknorren–2.⇨Zweig(1)–3.⇨Rücken(1)–4.⇨Buckel(1)–5.⇨Abzweigung–6.einenA.durchsägen:⇨schnarchen;sicheinenA.lachen;⇨lachen(1);denA.absägen,aufdemmansitzt:⇨schaden …   Das Wörterbuch der Synonyme

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