Definition of "polyzoon" []

• A tiny animal that forms compound colonies. (noun)

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• "On being submitted to Mr. Robert Etheridge, the able Palaeontologist of the British Surveys, that gentleman found 8 species of corals, 1 echinoderm, 2 annelids, 3 cirrhipedes, 2 Crustacea, 64 moUusca (38 gasteropods, 25 bivalves, and 1 polyzoon) and 3 fishes."