MESOPELAGIC Meaning of MESOPELAGIC in English [ ˌmɛsə(ʊ)pɪ'ladʒɪk , ˌmɛz- , ˌmi:s- , ˌmi:z- ]■ adjective Biology inhabiting the intermediate depths of the sea. Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004