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Thesaurus: hydrozoa

The Acalephae; one of the classes of coelenterates, including the Hydroidea, Discophora, and Siphonophora.

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coelenteratesdefinitionclassesdefinitiondiscophoradefinitionhydroideadefinitionphasedefinitionsiphonophoradefinitionacalephdefinitioncolonialdefinitionhydrozoondefinitionacalephaedefinitionalternationdefinitionbuddingdefinitiondominantdefinitiongenerationsdefinitiongivingdefinitionhydrasdefinitionhydroiddefinitionjellyfishesdefinitionmedusoiddefinitionpolypdefinitionrisedefinitiontypicallydefinitionhydro-familyhydro-aeroplanefamilyhydro-carbonsfamilyhydro-electricfamilyhydro-electricsfamilyhydro-extractorfamily

Definitions

  1. n. pl. The Acalephae; one of the classes of coelenterates, including the Hydroidea, Discophora, and Siphonophora.
  2. pl. of Hydrozoon
  3. The Acalephæ; one of the classes of coelenterates, including the Hydroidea, Discophora, and Siphonophora.
  4. The Acalephæ; one of the classes of coelenterates, includingthe Hydroidea, Discophora, and Siphonophora.
  5. n coelenterates typically having alternation of generations; hydroid phase is usually colonial giving rise to the medusoid phase by budding: hydras and jellyfishes n colonial coelenterates having the polyp phase dominant