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 (flo͞o′ôr′, -ər)

[New Latin, mineral belonging to a group used as fluxes, from Latin, a flowing, from fluere, to flow; see bhleu- in Indo-European roots.]


(Minerals) another name for fluorspar
[C17: from Latin: a flowing; so called from its use as a metallurgical flux]


(ˈflʊər aɪt, ˈflɔr-, ˈfloʊr-)

a mineral, calcium fluoride, CaF2, occurring in crystals and in masses: the chief source of fluorine. Also called fluor , fluorspar.
[1865–70; < Italian; see fluor, -ite1]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.fluor - a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine
atomic number 20, Ca, calcium - a white metallic element that burns with a brilliant light; the fifth most abundant element in the earth's crust; an important component of most plants and animals
atomic number 9, fluorine, F - a nonmetallic univalent element belonging to the halogens; usually a yellow irritating toxic flammable gas; a powerful oxidizing agent; recovered from fluorite or cryolite or fluorapatite
mineral - solid homogeneous inorganic substances occurring in nature having a definite chemical composition
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