trichroism Meaning, Definition & Usage

  1. noun pleochroism of a crystal so that it exhibits three different colors when viewed from three different directions

WordNet

Tri"chro*ism noun
Etymology
Pref. tri- + Gr. color: cf. F. trichroïsme.
Definitions
  1. (Min.) The quality possessed by some crystals of presenting different colors in three different directions.

Webster 1913