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[New Latin, mineral belonging to a group used as fluxes, from Latin, a flowing, from fluere, to flow; see bhleu- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
(Minerals) another name for fluorspar
[C17: from Latin: a flowing; so called from its use as a metallurgical flux]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
fluo•rite(ˈflʊər aɪt, ˈflɔr-, ˈfloʊr-)
a mineral, calcium fluoride, CaF2, occurring in crystals and in masses: the chief source of fluorine. Also called fluor , fluorspar.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
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|Noun||1.||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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