Webster's English Dictionary

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coelenterate

coe.len.ter.ate \si-'lent-*-.ra-t\ n [deriv. of Gk koilos + enteron 
   intestine - more at INTER-] : any of a phylum (Coelenterata) of basically 
   radially symmetrical inverte brate animals including the corals, sea 
   anemones, jellyfishes, and hydroids - coelenterate aj