/ Dictionary / Index E endometriosis: Meaning and Definition of Find definitions for: en•do•me•tri•o•sis Pronunciation: (en"dō-mē"trē-ō'sis), [key] — n. Pathol. the presence of uterine lining in other pelvic organs, esp. the ovaries, characterized by cyst formation, adhesions, and menstrual pains. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: endometriosis (Thesaurus) endometrial aspiration endometritis Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language