Webster's English Dictionary

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anthozoan

an.tho.zo.an \.an(t)-th*-'zo--*n\ n [deriv. of Gk anthos + zo-ion animal; 
   akin to Gk zo-e-)X life - more at QUICK : any of a class (Anthozoa) of 
   marine coelenterates (as the corals and sea  anemones) having polyps with 
   radial partitions - anthozoan aj