fluoride [ fl-ahyd, oo r flawr-, flohr-] EXAMPLES | WORD ORIGIN noun . Chemistry a salt of hydrofluoric acid consisting of two elements, one of which is fluorine, as sodium fluoride, NaF. a compound containing fluorine, as methyl fluoride, CH 3F. Origin of fluoride
First recorded in
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for fluoride Contemporary Examples of fluoride Historical Examples of fluoride
It may be prepared by the action of hydrofluoric acid upon lime, as directed under Barium,
The clarified solution of
fluoride of sodium is then drawn off, and the alumina treated as above described.
fluoride of calcium, or fluorspar, may be used for this experiment.
Its properties agree with those of the
fluoride of iodine prepared by Gore by the action of iodine on silver fluoride.
Sulphur dioxide is likewise decomposed in the cold, with production of a yellow flame and formation of
fluoride of sulphur. British Dictionary definitions for fluoride noun any salt of hydrofluoric acid, containing the fluoride ion, F – any compound containing fluorine, such as methyl fluoride
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for fluoride n.
1826, "binary compound of fluorine with another element," from
fluorine + -ide.
Online Etymology Dictionary, © 2010 Douglas Harper
fluoride [flur ′īd′, flôr ′-] n. A compound of fluorine with another element. The univalent anion of fluorine.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
A compound containing fluorine and another element or radical. Fluorine combines readily with nearly all the other elements, except the noble gases, to form fluorides. In some countries, fluoride is added to the drinking water as a preventive measure against tooth decay.
The American Heritage® Science Dictionary
Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
fluoride [( floor-eyed, flawr-eyed)]
Any of a number of naturally occurring
compounds of the element fluorine. Fluorides have been found to be effective in preventing tooth decay and are routinely added to drinking water in most jurisdictions.
The New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.