bryozoum

from The Collaborative International Dictionary of English v.0.48
Bryozoum \Bry`o*zo"um\, n. [NL. See {Bryozoa}.] (Zool.)
   An individual zooid of a bryozoan coralline, of which there
   may be two or more kinds in a single colony. The zo[oe]cia
   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}, {O[oe]cia},
   etc.).
   [1913 Webster]
    

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