NAEVUS Meaning of NAEVUS in English [ 'ni:vəs ]( US nevus ) ■ noun ( plural naevi -vʌɪ , -vi: ) a birthmark or a mole on the skin, especially a birthmark in the form of a raised red patch.OriginC19: from L. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004