/ Dictionary / Index G gastric lavage: Meaning and Definition of Find definitions for: gas'tric lavage' Pronunciation: [key] — Med. Med. the washing out of the stomach; lavage. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. gastric juice gastric mill Related Content Daily Word Quiz: verdant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language