Found 2 items, similar to Cnidaria.
English → English (WordNet) Definition: Cnidaria Cnidaria n : hydras; polyps; jellyfishes; sea anemones; corals [syn: phylum Cnidaria , Coelenterata, phylum Coelenterata]
English → English (gcide) Definition: Cnidaria Cnidaria \Cni*da"ri*a\ (n[i^]*d[=a]"r[i^]*[.a]), n. pl. [NL. See Cnida.] (Zo["o]l.) A comprehensive group equivalent to the true C[oe]lenterata, i. e., exclusive of the sponges. They are so named from presence of stinging cells (cnidae) in the tissues. See Coelenterata. [1913 Webster]