- (of a biaxial crystal) characterized by pleochroism.
Origin of pleochroic
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for pleochroic
The transparent crystals are pleochroic—a character well marked in emerald.
They rarely contain olivine, but pleochroic hypersthene is by no means rare in them (hypersthene-dolerites).
The pleochroism is strong, the pleochroic colours being usually green, yellow and brown.
The descriptive name "Pleochroic Halo" has originated from this fact.The Birth-Time of the World and Other Scientific Essays
J. (John) Joly