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[floo r-ahyt, flawr-, flohr-] /ˈflʊər aɪt, ˈflɔr-, ˈfloʊr-/

a common mineral, calcium fluoride, CaF 2 , occurring in green, blue, purple, yellow, or colorless crystals, usually in cubes: the principal source of fluorine, used also as a flux in metallurgy and for ornament.
(US & Canadian) a white or colourless mineral sometimes fluorescent and often tinted by impurities, found in veins and as deposits from hot gases. It is used in the manufacture of glass, enamel, and jewellery, and is the chief ore of fluorine. Composition: calcium fluoride. Formula: CaF2. Crystal structure: cubic Also called (in Britain and certain other countries) fluorspar, fluor
A transparent to translucent mineral occurring in many colors, especially yellow and purple, and usually in cube-shaped crystals with octahedral cleavage. It is found in sedimentary rocks and in ore deposits within igneous rocks. It is often fluorescent in ultraviolet light. Chemical formula: CaF2.


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  • Fluoro

    1. a combining form with the meanings “fluorine,” “fluoride,” used in the formation of compound words: fluorocarbon. 2. a combining form with the meaning “fluorescence,” used in the formation of compound words: fluoroscopy. combining form 1. indicating the presence of fluorine: fluorocarbon 2. indicating fluorescence: fluoroscope fluoro- or fluor- pref.

  • Fluorocarbon

    [floo r-oh-kahr-buh n, flawr-, flohr-] /ˌflʊər oʊˌkɑr bən, ˈflɔr-, ˈfloʊr-/ noun, Chemistry. 1. any of a class of compounds produced by substituting fluorine for hydrogen in a hydrocarbon, and characterized by great chemical stability: used chiefly as a lubricant, refrigerant, fire extinguishing agent, and in industrial and other applications in which chemical, electrical, flame, and […]

  • Fluorochrome

    [floo r-uh-krohm, flawr-, flohr-] /ˈflʊər əˌkroʊm, ˈflɔr-, ˈfloʊr-/ noun, Histology. 1. any of a group of fluorescent dyes used to label biological material. /ˈflʊərəʊˌkrəʊm/ noun 1. a chemical entity, such as a molecule or group, that exhibits fluorescence fluorochrome fluor·o·chrome (flur’ə-krōm’, flôr’-) n. Any of a group of fluorescent dyes used to stain tissues and […]

  • Fluorography

    [floo-rog-ruh-fee, flaw-, floh-] /flʊˈrɒg rə fi, flɔ-, floʊ-/ noun 1. . /flʊəˈrɒɡrəfɪ/ noun 1. the photographic recording of fluoroscopic images fluorography fluo·rog·ra·phy (flu-rŏg’rə-fē, flô-) n. See photofluorography.

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