Try Our Apps


The Best Internet Slang


[floo r-i-dey-shuh n, flawr-, flohr-] /ˌflʊər ɪˈdeɪ ʃən, ˌflɔr-, ˌfloʊr-/
the addition of fluorides to the public water supply to reduce the incidence of tooth decay.
Origin of fluoridation
First recorded in 1900-05; fluoride + -ation
Related forms
antifluoridation, noun, adjective
defluoridation, noun
Can be confused
fluorescent, fluoridation, fluoride. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for fluoridation
Contemporary Examples
British Dictionary definitions for fluoridation


the addition of about one part per million of fluorides to the public water supply as a protection against tooth decay
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
Cite This Source
Word Origin and History for fluoridation

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

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
fluoridation in Medicine

fluoridation fluor·i·da·tion (flur'ĭ-dā'shən, flôr'-)
The addition of a fluorine compound to drinking water for the purpose of reducing tooth decay.

fluor'i·date' v.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for fluoridation

Few English speakers likely know this word

Word Value for fluoridation

Scrabble Words With Friends

Nearby words for fluoridation