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FluoresceinFluorescein Flu`o*res"ce*in, n. (Chem.)
A yellowish red, crystalline substance, C20H12O5, produced
by heating together phthalic anhydride and resorcin; -- so
called, from the very brilliant yellowish green fluorescence
of its alkaline solutions. It has acid properties, and its
salts of the alkalies are known to the trade under the name
of uranin. 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.
FluorescenceFluorescence 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. Fluorescent
Fluorescent Flu`o*res"cent, a.
Having the property of fluorescence.
Meaning of Fluoresce from wikipedia
- radiation. When
exposed to
ultraviolet radiation, many
substances will glow (
fluoresce) with
colored visible light. The
color of the
light emitted depends on...
- bullae. The
quinine in
tonic water will
fluoresce under ultraviolet light. In fact,
quinine will
visibly fluoresce in
direct sunlight against a dark background...
-
water with a
violet laser (left)
illuminating both.
Typically quinine fluoresces blue,
which is
visible in the
right sample. The left
sample contains chloride...
-
itself (which does not
fluoresce), but
rather an
excretory product of the
fungus which sticks to hairs.
Infected skin does not
fluoresce.
Microscopic test:...
- short-wave
ultraviolet light,
which then
causes the
phosphor in the tube to
fluoresce,
making visible light.
Mercury is a heavy, silvery-white
metal that is...
- The
fluorescent staining of
yeast with calcofluor-white. The cell
walls fluoresce to a
vivid blue color....
-
Muslims also
believe that on the Day of Resurrection, this
callus will
fluoresce with an
immense white light. With the
growing po****rity of the zabiba...
- A
desktop computer modded to have
wires that
fluoresce under UV light...
- fluorescence. For example, porphyrins—****ociated with some skin diseases—will
fluoresce pink.
Though the
technique for
producing a
source of
ultraviolet light...
- it can
induce chemical reactions and
cause many
substances to glow or
fluoresce. Many
practical applications,
including chemical and
biological effects...
