/ek'teuh prok"teuh/ , n.
the phylum Bryozoa, esp. as distinguished from the phylum Entoprocta by a body plan having the anus of the polyp outside the crown of tentacles.
[ ekto- ECTO- + -prokta, neut. pl. of -PROKTOS, adj. deriv. of proktós anus; see PROCTO- ]