Definition of hydrozoan in English:


Line breaks: hydro|zoan
Pronunciation: /ˌhʌɪdrəˈzəʊən


  • A coelenterate of the class Hydrozoa, such as a hydra or Portuguese man-of-war.
    More example sentences
    • The difference between most hydrozoans and most scyphozoans is that in hydrozoans, the polyp stage usually predominates, with the medusa small or sometimes absent.
    • There are three subgroups within the cnidarians that have medusae, cubozoans, hydrozoans, and scyphozoans.
    • Scyphozoan medusae differ from those of hydrozoans in lacking a velum.


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  • Relating to or denoting hydrozoans.
    More example sentences
    • Getting hooked up with an animal like Donax seemed a very clever trick of hydrozoan evolution.
    • Many hydrozoan species perform large vertical diel migrations, which may bring individuals together in spawning aggregations.
    • The pinnacle of hydrozoan colonial complexity can be found in members of the Family Siphonophora.

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Pronunciation: ˌkɒlərəˈtjʊərə
elaborate ornamentation of a vocal melody