Definition of Hydrozoa

1. Noun. Coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes.


Definition of Hydrozoa

1. n. pl. The Acalephæ; one of the classes of cœlenterates, including the Hydroidea, Discophora, and Siphonophora.

Definition of Hydrozoa

1. Noun. (biology) a large group of marine animals, of the class ''Hydrozoa'', whose life cycles contain a sexual and asexual stage ¹

¹ Source: wiktionary.com

Definition of Hydrozoa

1. hydrozoon [n] - See also: hydrozoon

Medical Definition of Hydrozoa

1. The Acalephae; one of the classes of coelenterates, including the Hydroidea, Discophora, and Siphonophora. Origin: NL, fr. E. Hydra + Gr. An animal. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Hydrozoa

hydroxytoluic acid
hydroxytryptamine
hydroxytryptamines
hydroxytryptophan
hydroxytryptophan decarboxylase
hydroxytryptophol
hydroxyurea
hydroxyureas
hydroxyvitamin
hydroxyzine
hydroxyzine hydrochloride
hydroxyzines
hydrozincite
hydrozincites
hydrozirconation
hydrozoal
hydrozoan
hydrozoans
hydrozoon
hydrozoons
hydruret
hydrurets
hydrus
hydrœcia
hydrœcium
hydræ
hydræmia
hydyne
hydynes

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