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Webster's New World College Dictionary » parazoan
parazoan
parazoan definition
para·zoan (par′ə zō′ən)
noun
any of the subkingdom (Parazoa) of animals, consisting only of the phylum of sponges, having two tissue layers only and lacking a nervous system and true digestive cavity
adjective
of the parazoans
Webster's New World College Dictionary Copyright © 2009 by Wiley Publishing, Inc., Cleveland, Ohio.
Used by arrangement with John Wiley & Sons, Inc.
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