to add fluorides to (a supply of drinking water) in order to reduce the incidence of caries in the teeth
transitive verbfluor·i·dat·ed, fluor·i·dat·ing, fluor·i·dates
To add a fluorine compound to (a drinking water supply, for example) for the purpose of reducing tooth decay.
(third-person singular simple present fluoridates, present participle fluoridating, simple past and past participle fluoridated)
Back formation from fluorination.