[ nahy-dair-ee-uh ]
/ naɪˈdɛər i ə /

noun Zoology.

an alternative name for the invertebrate phylum Coelenterata, giving emphasis to the stinging structures as characteristic of the phylum.

Origin of Cnidaria

From New Latin; see origin at cnida, -aria Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for cnidaria