\Pol`y*chro"mate\, n. [See {Polychromic}.] (Chem.)
A salt of a polychromic acid.

\Pol`y*chro"mate\, n. [See {Polychromatic}.]
(Chem.)
A compound which exhibits, or from which may be prepared, a
variety of colors, as certain solutions derived from
vegetables, which display colors by fluorescence.