[ floor-i-deyt, flawr-, flohr- ]

verb (used with object),fluor·i·dat·ed, fluor·i·dat·ing.
  1. to introduce a fluoride into: to fluoridate drinking water.

Origin of fluoridate

First recorded in 1945–50; back formation from fluoridation

Other words from fluoridate

  • de·fluor·i·date, verb (used with object), de·fluor·i·dat·ed, de·fluor·i·dat·ing.

Words Nearby fluoridate

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use fluoridate in a sentence

British Dictionary definitions for fluoridate


/ (ˈflʊərɪˌdeɪt) /

  1. to subject (water) to fluoridation

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

Scientific definitions for fluoridate


[ flurĭ-dāt′ ]

  1. To add fluorine or a fluoride to something, especially to drinking water in order to prevent tooth decay.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.