EXAMPLES | WORD ORIGIN noun . 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 1810–20;
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for dichroism Historical Examples of 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
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. British Dictionary definitions for dichroism noun 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 light See 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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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n. 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. Related forms di•chro ′ic adj.
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