Origin of pleochroism
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for pleochroism
Both are light colored, and the pleochroism of the hypersthene is sometimes quite faint.Mount Rainier
The pleochroism is strong, the pleochroic colours being usually green, yellow and brown.
- 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 khrōs skin colour
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012