Bryozoum

Bry`o`zo´um


n.1.(Zool.) An individual zooid of a bryozoan coralline, of which there may be two or more kinds in a single colony. The zoœcia usually have a wreath of tentacles around the mouth, and a well developed stomach and intestinal canal; but these parts are lacking in the other zooids (Avicularia, Oœcia, etc.).
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.