Meaning of FLUORESCEIN
| Pronunciation: | | `floou'reseein
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 WordNet Dictionary |
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| | Definition: | | [n] a yellow dye that is visible even when highly diluted; used as an absorption indicator when silver nitrate solution is added to sodium chloride in order to precipitate silver chloride (turns pink when no chloride ions are left in solution and negative fluorescein ions are then absorbed) |
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| | Synonyms: | | fluoresceine, fluorescent dye, resorcinolphthalein |
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| | See Also: | | absorption indicator, bromeosin, dye, dyestuff, eosin | |
| Webster's 1913 Dictionary |
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| | Definition: | | \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.
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| Biology Dictionary |
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| | Definition: | | A reddish-orange, fluorescent molecule (C20H12O5) which is combustible and insoluble in water which is used in dyes; in immunology, this molecule makes up a fluorescent yellow-green dye that is used to label antibodies. |
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