/ Thesaurus / F Synonyms of fluoridization Find synonyms for: Noun1. fluoridation, fluoridization, fluoridisation, additionusage: the addition of a fluoride to the water supply (to prevent dental decay)WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: tenacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language