polychromate

from The Century Dictionary.

• noun In chem., a salt which may be viewed as consisting of two or more combining units of chromium trioxid combined with the oxid of a more basic element or radical, as potassium trichromate, K₂Cr₃O₁₀ = K₂-O.(CrO₃)₃.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Chem.) A salt of a polychromic acid.
• noun (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.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun chemistry A salt of a polychromic acid.
• noun chemistry 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.