hydrozoan hydrozoal • hydrozoic · · · Info · Definitions · Synonyms · Characters · · hydrozoan · · Text Latin · · Script 9 · · Length 3 · · Syllables Definitions · · · (noun) colonial coelenterates having the polyp phase dominant. Synonyms: hydroid. · · Noun Definition 1 Synonyms · · · hydroid · · Synonym 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 h latin small letter h U+0068 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 y latin small letter y U+0079 z latin small letter z U+007A