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fluoridation

[floo r-i-dey-shuh n, flawr-, flohr-]
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noun
  1. the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
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Origin of fluoridation

First recorded in 1900–05; fluoride + -ation
Related formsan·ti·fluor·i·da·tion, noun, adjectivede·fluor·i·da·tion, noun
Can be confusedfluorescent fluoridation fluoride
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for fluoridation

fluoridation

noun
  1. the addition of about one part per million of fluorides to the public water supply as a protection against tooth decay
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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 fluoridation

n.

1904, from fluoride + -ation. In reference to adding traces of fluoride to drinking water as a public health policy, from 1949.

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Online Etymology Dictionary, © 2010 Douglas Harper

fluoridation in Medicine

fluoridation

(flur′ĭ-dāshən, flôr′-)
n.
  1. The addition of a fluorine compound to drinking water for the purpose of reducing tooth decay.
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Related formsfluori•date′ v.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.