/ Dictionary / Index G gastrostomy: Meaning and Definition of Find definitions for: gas•tros•to•my Pronunciation: (ga-stros'tu-mē), [key] — pl. -mies. the construction of an artificial opening from the stomach through the abdominal wall, permitting intake of food or drainage of gastric contents. the opening so constructed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: gastrostomy (Thesaurus) gastroscopy gastrotomy Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language