Definition of Fluorescences. Meaning of Fluorescences. Synonyms of Fluorescences
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Definition of Fluorescences
Fluorescence Fluorescence Flu`o*res"cence, n.
A property possessed by fluor spar, uranium glass, sulphide
of calcium, and many other substances, of glowing without
appreciable rise of temperature when exposed to light or to
ultra-violet rays, cathode rays, X rays, etc.
Fluorescence Fluorescence Flu`o*res"cence, n. [From Fluor.] (Opt.)
That property which some transparent bodies have of producing
at their surface, or within their substance, light different
in color from the mass of the material, as when green
crystals of fluor spar afford blue reflections. It is due not
to the difference in the color of a distinct surface layer,
but to the power which the substance has of modifying the
light incident upon it. The light emitted by fluorescent
substances is in general of lower refrangibility than the
incident light. --Stockes.
