Invertebrates, Microbiologythe phylum Bryozoa, esp. as distinguished from the phylum Entoprocta by a body plan having the anus of the polyp outside the crown of tentacles.
Neo-Latin, equivalent. to Greek ekto-ecto- + -prōkta, neuter plural of -prōktos, adjective, adjectival derivative of prōktós anus; see procto-