/ Dictionary / Index I ileostomy: Meaning and Definition of Find definitions for: il•e•os•to•my Pronunciation: (il"ē-os'tu-mē), [key] — pl. -mies. the construction of an artificial opening from the ileum through the abdominal wall, permitting drainage of the contents of the small intestine. the opening so constructed. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: ileostomy (Thesaurus) ileocolostomy Ilesha Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language