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n. Chemistry The property possessed by some solutions of showing different colors at different concentrations.

n. Chemistry The property possessed by some crystals of exhibiting two different colors when viewed along different axes.

n. The property of some crystals of transmitting different colours of light in different directions.

n. The property of some anisotropic materials of having different absorption coefficients for light polarized in different directions; circular dichroism.

n. The property of presenting different colors by transmitted light, when viewed in two different directions, the colors being unlike in the direction of unlike or unequal axes.

n. In optics: A property possessed by many doubly refracting crystals of exhibiting different colors when viewed in different directions.

n. The exhibition of essentially different colors by certain solutions in different degrees of dilution or concentration.

n. pleochroism of a crystal so that it exhibits two different colors when viewed from two different directions

"He also studied the orientation of purines and pyrimidines in tobacco mosaic virus and in nucleic acids, by measuring the ultraviolet dichroism of oriented specimens, and he studied, with the visible-light polarizing microscope, the arrangement of virus particles in crystals of TMV and measured dry mass in cells with interference microscopes."

pleochroism   

polarizer    photoelectron    diffractometry    mammography    hypergraph    reflectivity    polaron    exploder    lithog    political/religious