Word Study
bryozoum
CIDE DICTIONARY
bryozoum, n. [NL. See Bryozoa.].
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.). [1913 Webster]
For further exploring for "bryozoum" in Webster Dictionary Online