Pol·y·zo·an n. Zool. (a) Any species of Polyzoa; one of the Polyzoa. (b) A polyzoon.
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polyzoan
n : sessile aquatic animal forming mosslike colonies of small
polyps each having a curved or circular ridge bearing
tentacles; attach to stones or seaweed and reproduce by
budding [syn: bryozoan, sea mat, sea moss, moss
animal]
[also: polyzoa (pl)]