资料来源 : Webster's Revised Unabridged Dictionary (1913)

Polychroite \Pol"y*chro*ite\, n. [Poly- + Gr. ? color: cf. F.
   polychro["i]te.] (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}.