- an alternative name for the invertebrate phylum Coelenterata, giving emphasis to the stinging structures as characteristic of the phylum.
Origin of Cnidaria
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for cnidaria
Real parasites are not numerous among the sponges and cnidaria.
On the other hand, the cnidaria develop into higher radial (star-shaped) persons, and the platodes into lower bilateral persons.
Self-cleavage is also found among the higher multicellular organisms—namely, the cnidaria (polyps, medus).
Flagellated epithelium is especially found in the cnidaria and platodes; ciliated epithelium mostly in the vermalia and mollusca.
I began with the consideration of the simplest sponges (olynthus) and cnidaria (hydra).
Word Origin and History for cnidaria
phylum of stinging invertebrates, from Modern Latin cnida, from Greek knide "nettle," from stem of knizein "to scratch scrape." Related: Cnidarian.
Online Etymology Dictionary, © 2010 Douglas Harper