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Definition of Cnidarian
1. Noun. Radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms.
Exact synonyms: Coelenterate
Terms within: Coelenteron
Generic synonyms: Invertebrate
Group relationships: Cnidaria, Coelenterata, Phylum Cnidaria, Phylum Coelenterata
Specialized synonyms: Polyp, Medusa, Medusan, Medusoid, Jellyfish, Scyphozoan, Hydroid, Hydrozoan, Actinozoan, Anthozoan
Terms within: Coelenteron
Generic synonyms: Invertebrate
Group relationships: Cnidaria, Coelenterata, Phylum Cnidaria, Phylum Coelenterata
Specialized synonyms: Polyp, Medusa, Medusan, Medusoid, Jellyfish, Scyphozoan, Hydroid, Hydrozoan, Actinozoan, Anthozoan
Definition of Cnidarian
1. Noun. any of various invertebrate animals, such as jellyfish, hydras, sea anemones, corals and formerly sponges and ctenophores that belong to the phylum ''Cnidaria''. ¹
¹ Source: wiktionary.com
Definition of Cnidarian
1. [n -S]