\Cor"al*lin\, n. [So named in allusion to the color of
red corallin, fr. L. corallum coral.] (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
   {p[ae]onin}.
{Yellow corallin}. See {Aurin}.