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allochromatic

[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.
Compare idiochromatic.
Origin
1875-1880
1875-80; allo- + chromatic
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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