/ Dictionary / Index G gastritis: Meaning and Definition of Find definitions for: gas•tri•tis Pronunciation: (ga-strī'tis), [key] — n. inflammation of the stomach, esp. of its mucous membrane. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gastritis (Thesaurus) gastrin gastro- Related Content Daily Word Quiz: pundit Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language