pleochroic definition, pleochroic meaning | English dictionary

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      n   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)  
     (C19: pleo- + -chroism, from Greek khros skin colour)  
   pleochroic             adj  
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