/ Dictionary / Index F fluoride: Meaning and Definition of Find definitions for: fluor•ide Pronunciation: (floor'īd, flôr'-, flōr'-), [key] — n. Chem. a salt of hydrofluoric acid consisting of two elements, one of which is fluorine, as sodium fluoride, NaF. a compound containing fluorine, as methyl fluoride, CHF. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fluoride (Thesaurus) fluoridation fluoridize Related Content Daily Word Quiz: nonchalant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language