(n) any of various moss-like aquatic animals usually forming branching colonies; each polyp having a both mouth and anus within a closed ring of tentacles
‖n. pl. [ NL., fr. Gr. &unr_; within + &unr_; the anus. ] (Zoöl.) A group of Bryozoa in which the anus is within the circle of tentacles. See Pedicellina. [ 1913 Webster ]