[floo-awr, -er] /ˈflu ɔr, -ər/
variant of before a vowel:
another name for fluorspar
a variant of fluoro- fluorene, fluorine
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).
Variant of fluoro-.
[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
[floo-res, flaw-, floh-] /flʊˈrɛs, flɔ-, floʊ-/ verb (used without object), fluoresced, fluorescing. 1. to exhibit . /ˌflʊəˈrɛs/ verb 1. (intransitive) to exhibit fluorescence
[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
[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) […]