/ Thesaurus / S Synonyms of standard atmosphere Find synonyms for: Noun1. standard atmosphere, atmosphere, atm, standard pressure, pressure unitusage: a unit of pressure: the pressure that will support a column of mercury 760 mm high at sea level and 0 degrees centigradeWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: languid Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language