Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun class_hydrozoa

1 sense of class hydrozoa

Sense 1
Hydrozoa, class Hydrozoa -- (coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes)
       => class -- ((biology) a taxonomic group containing one or more orders)