- Crystallography. pleochroism of a uniaxial crystal such that it exhibits two different colors when viewed from two different directions under transmitted light.
- Chemistry. the exhibition of essentially different colors by certain solutions in different degrees of dilution or concentration.
Origin of dichroism
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Examples from the Web for dichroism
Moreover, in tourmaline the dichroism is strongly marked, whereas in jargoon it is remarkably feeble.
The zircon, for example, is strongly doubly refracting, but shows hardly any dichroism.
However, the amount of dichroism would be less in such a case than in a true emerald of as deep a color.
Also, owing to the dichroism of the ruby the red is variable according to the changing position of the stone.
Although strongly doubly refracting, the hyacinth shows scarcely any dichroism and thus lacks variety of color.
- Also called: dichromaticism a property of a uniaxial crystal, such as tourmaline, of showing a perceptible difference in colour when viewed along two different axes in transmitted white lightSee also pleochroism
- a property of certain solutions as a result of which the wavelength (colour) of the light transmitted depends on the concentration of the solution and the length of the path of the light within the solution
- The property of some solutions of showing different colors at different concentrations.
- The property of some crystals of exhibiting two different colors when viewed along different axes.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.