class hydrozoa class hyalospongiae • class hymenomycetes · · · Info · Definitions · Characters · · class hydrozoa · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes. Synonyms: Hydrozoa, class Hydrozoa. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 h latin small letter h U+0068 l latin small letter l U+006C o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 y latin small letter y U+0079 z latin small letter z U+007A