Meaning of calcium fluoride

cal'cium fluor'ide

Pronunciation: [key]
  1. a white, crystalline compound, CaF, insoluble in water, occurring in nature as the mineral fluorite: used as a flux in metallurgy and as a decay preventive in dentifrices.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.