Definition of Cnidaria in English:


Line breaks: Cni|daria
Pronunciation: /(k)nʌɪˈdɛːrɪə


  • A phylum of aquatic invertebrate animals that comprises the coelenterates.
    More example sentences
    • By this usage, the basal metazoans comprise just four phyla (Placozoa, Porifera, Cnidaria, and Ctenophora) and the large clade Bilateria.
    • Four phyla (Placozoa, Porifera, Cnidaria, and Ctenophora) are typically thought to have an ancient origin within Metazoa.
    • Despite these attempts, relationships among Bilateria, Cnidaria, Ctenophora, Placozoa, and Porifera remain obscure.


modern Latin (plural), from Greek knidē 'nettle'.

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