Breadcrumb Home > Dictionary > Index O outgas: Meaning and Definition of Find definitions for: out•gas Pronunciation: (out'gas", out"gas'), [key] — v., -gassed, -gas•sing. —v.t. to remove (adsorbed or occluded gases), usually by heat or reduced pressure. —v.i. to lose gas. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. outfrown outgeneral TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: ennui Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language