||Bry`o*zo"um (?), n. [NL. See
Bryozoa.] (Zoöl.) 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.).