allochromatic

American  

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

adjective

1. Physical Chemistry.  pertaining to or having photochemical properties resulting from an impurity or from exposure to radiation.

2. Mineralogy.  (of a mineral) having no color in itself but bearing colored impurities.

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Etymology

Origin of allochromatic

First recorded in 1875–80; allo- + chromatic