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Meaning of mesozoan

mes•o•zo•an

Pronunciation: (mez"u-zō'un, mes"-, mē"zu-, -su-), [key]
— Zool. Zool.
—n.
  1. any member of the phylum Mesozoa.
—adj.
  1. of or pertaining to the mesozoans.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.