| NOUN | animal | Hydrozoa, class Hydrozoa | coelenterates typically having alternation of generations |
|---|
| Meaning | coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes. | |
|---|---|---|
| Synonym | class Hydrozoa | |
| Member of | Cnidaria, phylum Cnidaria, Coelenterata, phylum Coelenterata | hydras |
| Members | Sertularia, genus Sertularia | sessile hydroid that forms feathery colonies |
| Siphonophora, order Siphonophora | marine colonial hydrozoans | |
| genus Hydra | hydras | |
| hydrozoan, hydroid | colonial coelenterates having the polyp phase dominant | |
| Broader | class | (biology) a taxonomic group containing one or more orders |
| Spanish | hidrozoos | |
| Catalan | Hydrozoa | |
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