ENDOMETRIOSIS Meaning of ENDOMETRIOSIS in English endometriosis BrE AmE ˌend əʊ ˌmiːtr i ˈəʊs ɪs § -əs AmE -oʊ ˌmiːtr i ˈoʊs əs Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012