PERINEUM Meaning of PERINEUM in English [ ˌpɛrɪ'ni:əm ]■ noun ( plural perinea ) Anatomy the area between the anus and the scrotum or vulva.Derivativesperineal adjective OriginME: from late L., from Gk perinaion . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004