endometriosisPronunciation: /ˌɛndə(ʊ)miːtrɪˈəʊsɪs/Definition of endometriosis noun [mass noun] Medicine a condition resulting from the appearance of endometrial tissue outside the womb and causing pelvic pain, especially associated with menstruation. endometriosis in other Oxford dictionaries Definition of endometriosis in the US English dictionary
