fluor

n. fluorite, calcium fluoride, common translucent mineral occurring in several different colors

n. American corporation headquartered in California, operator of several subsidiaries worldwide (involved in business services, coal production, and engineering and construction services)

This page is about the fluor class of minerals. For the company, see Fluor Corp. Fluor is any of a class of minerals first identified by Georg Agricola, which he described as resembling gems, but softer, readily fusible, and useful in smelting.
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Noun
1. a soft mineral (calcium fluoride) that is fluorescent in ultraviolet light; chief source of fluorine
(synonym) fluorite, fluorspar
(hypernym) mineral
(substance-meronym) calcium, Ca, atomic number 20

n. fluorine, nonmetallic chemical element

n. fluorine, nonmetallic chemical element