pleochroism noun. [pli:'ɒkrǝʊɪz(ǝ)m] M19.
[formed as PLEOCHROIC + -ISM.]
Crystallography & Mineralogy. The property of differentially absorbing different wavelengths of light depending on their direction of incidence or state of polarization; esp. (in biaxial crystals) dichroism, (in triaxial crystals) trichroism; an instance of this.

[TahlilGaran] English Dictionary ▲