/ Dictionary / Index F fluorapatite: Meaning and Definition of Find definitions for: fluor•ap•a•tite Pronunciation: (floor-ap'u-tīt", flôr-, flōr-), [key] — n. a crystalline mineral, Ca(PO)F, formed from hydroxyapatite in the presence of fluoride, that has a hardening effect on bones and teeth. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: fluorapatite (Thesaurus) fluor fluorene Related Content Daily Word Quiz: clairvoyant Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language