Cnidaria

[ nahy-dair-ee-uh ]

noun

, Zoology.

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

Word History and Origins

Origin of Cnidaria¹

From New Latin; cnida, -aria

Example Sentences

That finding suggests that the Cnidaria phylum of animals, which includes hydras and jellyfish, already had some genetic components of sleep regulation before it diverged from the ancestors of other groups of animals.

From Quanta Magazine

On the other hand, the cnidaria develop into higher radial (star-shaped) persons, and the platodes into lower bilateral persons.

From Project Gutenberg

Self-cleavage is also found among the higher multicellular organisms—namely, the cnidaria (polyps, medus).

From Project Gutenberg

Flagellated epithelium is especially found in the cnidaria and platodes; ciliated epithelium mostly in the vermalia and mollusca.

From Project Gutenberg

In this way is formed a ring of tentacles, the most characteristic organs of the Cnidaria.

From Project Gutenberg

Real parasites are not numerous among the sponges and cnidaria.

From Project Gutenberg