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fluor

[floo-awr, -er]
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noun Mineralogy.
  1. fluorite.
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Origin of fluor

First recorded in 1615–25, fluor is from the Latin word fluor a flowing; so called from its use as a flux

fluoro-

  1. a combining form with the meanings “fluorine,” “fluoride,” used in the formation of compound words: fluorocarbon.
  2. a combining form with the meaning “fluorescence,” used in the formation of compound words: fluoroscopy.
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Also fluo-; especially before a vowel, fluor-

Origin of fluoro-

From New Latin; see origin at fluor, -o-
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for fluor

Historical Examples

British Dictionary definitions for fluor

fluor

noun
  1. another name for fluorspar
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Word Origin

C17: from Latin: a flowing; so called from its use as a metallurgical flux

fluoro-

before a vowel fluor-

combining form
  1. indicating the presence of fluorinefluorocarbon
  2. indicating fluorescencefluoroscope
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for fluor

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).

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Online Etymology Dictionary, © 2010 Douglas Harper
fluor in Medicine

fluoro-

pref.
  1. Fluorine:fluorosis.
  2. Fluorescence:fluoroscope.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.