Au·rin n. Chem. A red coloring matter derived from phenol; -- called also, in commerce, yellow corallin.
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Cor·al·lin n. Chem. A yellow coal-tar dyestuff which 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.
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