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Noun hydrozoan has 1 sense
hydrozoan, hydroid - colonial coelenterates having the polyp phase dominant--1 is a kind of class; coelenterate, cnidarian; class; coelenterate, cnidarian
 --1 is a member of
 --1 has members: 
--1 has particulars: planula; hydra; siphonophore; sertularian|  | Cnidaria, phylum Cnidaria, Coelenterata, phylum Coelenterata; 1 sense of hydrozoan                                                    ; hydrozoan, hydroid; Hydrozoa, class Hydrozoa; Hydrozoa, class Hydrozoa; Cnidaria, phylum Cnidaria, Coelenterata, phylum Coelenterata; 1 sense of hydrozoan                                                    ; hydrozoan, hydroid; Hydrozoa, class Hydrozoa | 
 
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