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A piece of coral, usually fitted with small bells and other appurtenances, used by children as a plaything. Brain coral, or Brain stone coral. See under Brain. -- Chain coral. See under Chain. -- Coral animal (Zoöl.), one of the polyps by which corals are formed. They are often very erroneously called coral insects.…

sh of the genera Chætodon, Pomacentrus, Apogon, and related genera, which live among reef corals.

Same as Corallian.

Having coral; covered with coral.

Like coral, or partaking of its qualities.

A deposit of coralliferous limestone forming a portion of the middle division of the oölite; -- called also coral-rag.

Containing or producing coral.

resembling coral in form.

Same as Anthozoa.

producing coral; coraligerous; coralliferous. Humble.

Producing coral; coraliferous.

probably consists chiefly of rosolic acid. See Aurin, and Rosolic acid under Rosolic. Red corallin, a red dyestuff which is obtained by treating aurin or rosolic acid with ammonia; -- called also pæonin. -- Yellow corallin. See Aurin.

Composed of corallines; as, coralline limestone.

A fossil coralline.

A mineral substance or petrifaction, in the form of coral.

Having the form of coral; branching like coral.

resembling coral; coralloid. Sir T. browne.

The coral or skeleton of a zoöphyte, whether calcareous of horny, simple or compound. See Coral.

A cruciferous herb of certain species of Dentaria; -- called also toothwort, tooth violet, or pepper root.

A division of Hydroidea, including those genera that secrete a stony coral, as Millepora and Stylaster. Two forms of zooids in life project from small pores in the coral and resemble those of other hydroids. See Millepora.