Consisting of or containing coral; resembling coral; coral. SpecificallyHaving a color somewhat resembling that of red coral; red, pinkish-red, or reddish-yellow.n. A seaweed with rigid calcareous fronds: so called from its resemblance to coral. See Corallina.n. A coral or other zoöphyte or actinozoan: a term extended also to polyzoans or moss-animalcules, and to some of the hydrozoans.n. [In this sense commonly corallin.] A dye, prepared commercially by heating together phenol, anhydrous oxalic acid, and oil of vitriol, and producing a very unstable color.n. Commercial rosolic acid.