Pol″y‐chro‐ite (?), n. [Poly- + Gr. � color: cf. F. polychroïte.] (Chem.) The coloring matter of saffron; — formerly so called because of the change of color on treatment with certain acids; — called also crocin, and safranin.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.