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n.1.(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.
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.