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Webster's 1828 Dictionary

POLYCHROITE

n.[Gr. many, and to color. ] The coloring matter of saffron.

 

Webster's 1913 Dictionary

POLYCHROITE

Pol "y *chro *ite, n. Etym: [Poly- + Gr. polychroïte.] (Chem. )

 

Defn: The coloring matter of saffron; -- formerly so called because of the change of color on treatment with certain acids; -- called also crocin, and safranin.