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[plee-ok-roh-iz-uh m] /pliˈɒk roʊˌɪz əm/

the property of certain crystals of exhibiting different colors when viewed from different directions under transmitted light.
Compare (def 1), .
a property of certain crystals of absorbing light to an extent that depends on the orientation of the electric vector of the light with respect to the optic axes of the crystal. The effect occurs in uniaxial crystals (dichroism) and esp in biaxial crystals (trichroism)


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