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pleochroism
[ plee-ok-roh-iz-uhm ]
noun
- the property of certain crystals of exhibiting different colors when viewed from different directions under transmitted light. Compare dichroism ( def 1 ), trichroism.
pleochroism
/ ˌpliːəˈkrəʊɪk; plɪˈɒkrəʊˌɪzəm /
noun
- a property of certain crystals of absorbing light to an extent that depends on the orientation of the electric vector of the light with respect to the optic axes of the crystal. The effect occurs in uniaxial crystals ( dichroism ) and esp in biaxial crystals ( trichroism )
Derived Forms
- pleochroic, adjective
yvlog History and Origins
Origin of pleochroism1
yvlog History and Origins
Origin of pleochroism1
Example Sentences
The pleochroism of some crystals is so strong that when they are viewed through in different directions they exhibit marked differences in colour.
A very useful means of discriminating between certain stones is found in their dichroism, or, to use a more general term, pleochroism.
The pleochroism is strong, the pleochroic colours being usually green, yellow and brown.
The last mentioned is a bright blue variety of hornblende with striking pleochroism.
Biotite is, however, readily distinguished by its darker colour, strong pleochroism, and small optic axial angle.
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