[floo r-i-deyt, flawr-, flohr-] /ˈflʊər ɪˌdeɪt, ˈflɔr-, ˈfloʊr-/

verb (used with object), fluoridated, fluoridating.
to introduce a into:
to fluoridate drinking water.
to subject (water) to fluoridation

1949, back-formation from fluoridation. Related: Fluoridated; fluoridating.
To add fluorine or a fluoride to something, especially to drinking water in order to prevent tooth decay.


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