LACTIFEROUS Meaning of LACTIFEROUS in English [ lak'tɪf(ə)rəs ]■ adjective chiefly Anatomy forming or conveying milk or milky fluid.OriginC17: from L. lac , lact- 'milk' + -ferous . Concise Oxford English vocab. Сжатый оксфордский словарь английского языка. 2004