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Fluor :: Fluor (n.) See Fluorite.

Chrysene :: Chrysene (n.) One of the higher aromatic hydrocarbons of coal tar, allied to naphthalene and anthracene. It is a white crystalline substance, C18H12, of strong blue fluorescence, but generally colored yellow by impurities..

Veinstone :: Veinstone (n.) The nonmetalliferous mineral or rock material which accompanies the ores in a vein, as quartz, calcite, barite, fluor spar, etc.; -- called also veinstuff..

Thionoline :: Thionoline (n.) A beautiful fluorescent crystalline substance, intermediate in composition between thionol and thionine..

Erythrosin :: Erythrosin (n.) A red dyestuff obtained from fluorescein by the action of iodine.

Hydrofluoric :: Hydrofluoric (a.) Pertaining to, or containing, hydrogen and fluorine; fluohydric; as, hydrofluoric acid..

Picene :: Picene (n.) A hydrocarbon (C/H/) extracted from the pitchy residue of coal tar and petroleum as a bluish fluorescent crystalline substance.

Fluorescent :: Fluorescent (a.) Having the property of fluorescence.

Fluoranthene :: Fluoranthene (n.) A white crystalline hydrocarbon C/H/, of a complex structure, found as one ingrdient of the higher boiling portion of coal tar..

Phenanthrene :: Phenanthrene (n.) A complex hydrocarbon, C14H10, found in coal tar, and obtained as a white crystalline substance with a bluish fluorescence..

Hydrofluosilicic :: Hydrofluosilicic (a.) Pertaining to, or denoting, a compound consisting of a double fluoride of hydrogen and silicon; silicofluoric. See Silicofluoric..

Fluorescein :: Fluorescein (n.) 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..

Chlorophane :: Chlorophane (n.) A variety of fluor spar, which, when heated, gives a beautiful emerald green light..

Xanthinine :: Xanthinine (n.) A complex nitrogenous substance related to urea and uric acid, produced as a white powder; -- so called because it forms yellow salts, and because its solution forms a blue fluorescence like quinine..

Pseudomorph :: Pseudomorph (n.) A pseudomorphous crystal, as a crystal consisting of quartz, but having the cubic form of fluor spar, the fluor crystal having been changed to quartz by a process of substitution..

Fluor Albus :: Fluor albus () The whites; leucorrhaea.

Fluophosphate :: Fluophosphate (n.) A double salt of fluoric and phosphoric acids.

Cryolite :: Cryolite (n.) A fluoride of sodium and aluminum, found in Greenland, in white cleavable masses; -- used as a source of soda and alumina..

Radiograph :: Radiograph (n.) A picture produced by the Rontgen rays upon a sensitive surface, photographic or fluorescent, especially a picture of opaque objects traversed by the rays..

Curcumin :: Curcumin (n.) The coloring principle of turmeric, or curcuma root, extracted as an orange yellow crystalline substance, C14H14O4, with a green fluorescence..

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