pleochroic

American  

[plee-uh-kroh-ik] / ˌpli əˈkroʊ ɪk /

adjective

1. (of a biaxial crystal) characterized by pleochroism.

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Etymology

Origin of pleochroic

First recorded in 1860–65; pleo- + -chroic

Example Sentences

Such an effect is called pleochroism, and crystals which show variations in their colour when viewed from different angles, or by transmitted light, are called pleochroic, or pleochromatic—from two Greek words signifying "to colour more."

From The Chemistry, Properties and Tests of Precious Stones by Mastin, John

The andalusite may be pink and is then often pleochroic in thin sections, or it may be white with the cross-shaped dark enclosures of the matrix which are characteristic of chiastolite.

From Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 6 "Home, Daniel" to "Hortensius, Quintus" by Various

The eye of the observer placed at e will see two images of the square aperture, and if a pleochroic crystal be placed in front of this aperture the two images will be differently coloured.

From Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 7 "Crocoite" to "Cuba" by Various

Under the microscope some of the biotite has a green coloration from decomposition and is surrounded by strong pleochroic halos.

From The Long Labrador Trail by Wallace, Dillon

The colour is dark grey or green; a characteristic feature is the pleochroism, the pleochroic colours varying from yellowish-green to indigo-blue.

From Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 "Clervaux" to "Cockade" by Various