Eukaryote
cnidaria Audio
Cni·dar·i·a [ nahy-dair-ee-uh ]
Subclass of:
Invertebrates
Definitions related to cnidaria:
  • A phylum of radially symmetrical invertebrates characterized by possession of stinging cells called nematocysts. It includes the classes ANTHOZOA; CUBOZOA; HYDROZOA, and SCYPHOZOA. Members carry CNIDARIAN VENOMS.
    NLM Medical Subject Headings
    U.S. National Library of Medicine, 2025
  • Phylum of radially symmetrical invertebrates characterized by possession of stinging cells called nematocysts; includes the classes Anhozoa, Cubozoa, Hydrozoa, and Scyphozoa; members carry Cnidarian venoms.
    CRISP Thesaurus
    National Institutes of Health, 2006
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