Erythrin(Chem) A colorless crystalline substance, C20H22O10, extracted from certain lichens, as the various species of Rocella. It is a derivative of orsellinic acid. So called because of certain red compounds derived from it. Called also erythric acid.
Erythrin(Min) See Erythrite, 2.
Century Dictionary and Cyclopedia
nerythrinAn organic principle (C20H22O10) obtained from Roccella tinctoria, Lecanora tartarea, and other lichens, which furnish the blue dyestuff called litmus. It is a crystalline compound formed by the union of ether, orsellinic acid, and erythrite. Also called erythric acid, erythrinic acid.
nerythrinSame as erythrite, 1.
nerythrinA coal-tar color of the xanthene type, prepared by the methylation of eosin. It dyes silk a bluish red with a red fluorescence. Also called primrose.