Meaning of pleochroism

ple•och•ro•ism

Pronunciation: (plē-ok'rō-iz"um), [key]
— n.
  1. the property of certain crystals of exhibiting different colors when viewed from different directions under transmitted light. Cf.(def. 1),
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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