allochromatic

[ al-uh-kruh-mat-ik, -kroh- ]
/ ˌæl ə krəˈmæt ɪk, -kroʊ- /

adjective

Physical Chemistry. pertaining to or having photochemical properties resulting from an impurity or from exposure to radiation.
Mineralogy. (of a mineral) having no color in itself but bearing colored impurities.

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Compare idiochromatic.

Origin of allochromatic

First recorded in 1875–80; allo- + chromatic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020