flu̇(ə)ˈr, flōr, flȯˈr+_- noun
Etymology: German fluorapatit, from fluor- + apatit apatite
: an apatite containing fluorine: as
a. : apatite in which fluorine predominates over chlorine, hydroxyl, and carbonate
b. : calcium phosphate fluoride Ca 5 F(PO 4 ) 3