or A.S.T., a.s.t.

Atlantic Standard Time.See under standard time.

Definition for ast (2 of 2)


a suffix of nouns that denote a person who practices or is concerned with something, or holds certain principles, doctrines, etc.: enthusiast;ecdysiast; gymnast.

Origin of -ast

a variant of -ist after the vowel i; from Greek -astēs Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Examples from the Web for ast

British Dictionary definitions for ast


abbreviation for

Atlantic Standard Time
automated screen trading (in securities)
British education advanced skills teacher
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for ast



aspartate aminotransferase
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.