‖n. pl. [ NL., fr. Gr. poly`s many + zw^, on an animal. ] (Zool.) Same as Bryozoa. See Illust. under Bryozoa, and Phylactolæmata. [ 1913 Webster ]
(n) sessile aquatic animal forming mossy colonies of small polyps each having a curved or circular ridge bearing tentacles; attach to stones or seaweed and reproduce by budding, Syn. sea mat, moss animal, sea moss, polyzoan