Fluor

[floo-awr, -er] /ˈflu ɔr, -ər/

noun, Mineralogy.
1.
.
1.
variant of before a vowel:
fluorene; fluoric.
/ˈfluːɔː/
noun
1.
another name for fluorspar
combining form
1.
a variant of fluoro- fluorene, fluorine
n.

16c., and old chemistry term for “minerals which were readily fusible and useful as fluxes in smelting” [Flood], Latin fluor, originally meaning “a flowing, flow” (see fluent). Since 1771 applied to minerals containing fluorine, especially calcium fluoride (fluorspar or fluorite).

fluor- pref.
Variant of fluoro-.

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Fluorapatite
[floo r-ap-uh-tahyt, flawr-, flohr-] /flʊərˈæp əˌtaɪt, flɔr-, floʊr-/ noun 1. a crystalline mineral, Ca 5 (PO 4) 3 F, formed from hydroxyapatite in the presence of fluoride, that has a hardening effect on bones and teeth. /ˌflʊəˈræpətaɪt/ noun 1. a mineral consisting of calcium fluorophosphate; the most common form of apatite
Fluoresce
[floo-res, flaw-, floh-] /flʊˈrɛs, flɔ-, floʊ-/ verb (used without object), fluoresced, fluorescing. 1. to exhibit . /ˌflʊəˈrɛs/ verb 1. (intransitive) to exhibit fluorescence
Fluorene
[floo r-een, -in, flawr-, flohr-] /ˈflʊər in, -ɪn, ˈflɔr-, ˈfloʊr-/ noun, Chemistry. 1. a white, crystalline, water-insoluble solid, C 13 H 10 , used chiefly in the manufacture of resins and dyes. /ˈflʊəriːn/ noun 1. a white insoluble crystalline solid used in making dyes. Formula: (C6H4)2CH2

Fluorescence
[floo-res-uh ns, flaw-, floh-] /flʊˈrɛs əns, flɔ-, floʊ-/ noun, Physics, Chemistry. 1. the emission of radiation, especially of visible light, by a substance during exposure to external radiation, as light or x-rays. Compare (def 1). 2. the property possessed by a substance capable of such emission. 3. the radiation so produced. /ˌflʊəˈrɛsəns/ noun 1. (physics) […]
Fluorescein
[floo-res-ee-in, flaw-, floh-] /flʊˈrɛs i ɪn, flɔ-, floʊ-/ noun, Chemistry. 1. an orange-red, crystalline, water-insoluble solid, C 20 H 12 O 5 , that in alkaline solutions produces an orange color and an intense green fluorescence: used to trace subterranean waters and in dyes. /ˌflʊəˈrɛsɪɪn/ noun 1. an orange-red crystalline compound that in aqueous solution […]