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1. (n.) fluorescence
the emission of radiation, esp. of visible light, by a substance during exposure to external radiation.
2. fluorescence
the property possessed by such a substance.
3. fluorescence
the radiation so produced.
Etymology: (1852; fluor (spar ) +(opal)escence)
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| Definition of 'Fluorescence' |
Princeton's WordNet |
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1. (noun) fluorescence
light emitted during absorption of radiation of some other (invisible) wavelength
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| Definition of 'Fluorescence' |
Webster Dictionary |
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1. (noun) Fluorescence
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
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| Definition of 'Fluorescence' |
U.S. National Library of Medicine |
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1. Fluorescence
The property of emitting radiation while being irradiated. The radiation emitted is usually of longer wavelength than that incident or absorbed, e.g., a substance can be irradiated with invisible radiation and emit visible light. X-ray fluorescence is used in diagnosis.
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| Definition of 'Fluorescence' |
The Standard Electrical Dictionary |
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1. Fluorescence
The property of converting ether waves of one length, sometimes of invisible length, into waves of another length (visible). AEsculin, quinine salts, uranium glass and other substances exhibit this phenomenon. The phenomenon is utilized in the production of Geissler tubes.
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Sense: giving off a certain kind of light
fluorescent light; fluorescent paint.
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 Afrikaans: fluoressensie |
 Arabic: إسْتِشْعاع، فَلْوَرَه |
 Bulgarian: флоуресцентност |
 Brazilian: fluorescência |
 Czech: fluorescence |
 German: die Fluoreszenz |
 Danish: fluorescens |
 Greek: φθορισμός |
 Spanish: fluorescencia |
 Estonian: fluorestsents |
 Farsi: شب نما |
 Finnish: fluoresenssi |
 French: fluorescence |
 Hebrew: הַנהָרָה |
 Hindi: चमक |
 Croatian: fluorescencija, svjetluca |
 Hungarian: fluoreszkálás |
 Indonesian: lampu neon |
 Icelandic: flúrljóm |
 Italian: fluorescenza |
 Japanese: 蛍光性 |
 Korean: 형광성 |
 Lithuanian: fluorescencija |
 Latvian: fluorescence |
 Malay: pendarfluor |
 Dutch: fluorescentie |
 Norwegian: det som er selvlysende, f |
 Polish: fluorescencja |
 Persian: شب نما |
 Pashto: دوړانګودخپرېدنى خاصيت چه |
 Portuguese: fluorescência |
 Romanian: fluorescenţă |
 Russian: флуоресценция |
 Slovak: fluorescencia |
 Slovenian: fluorescenca |
 Serbian: fluorescentnost |
 Swedish: fluorescens |
 Thai: การส่องแสง |
 Turkish: florışıma |
 Taiwanese: 螢光 |
 Ukrainian: флуоресценція, свічення |
 Urdu: فلورییت دار |
 Vietnamese: tính huỳnh quang |
 Chinese: 荧光 |
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Definitions of Fluorescence 
