bryozoum

from The Century Dictionary.

• noun One of the Bryozoa.

from the GNU version of the Collaborative International Dictionary of English.

• noun (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.).

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun A bryozoon.