stan'nous fluo'ride

a white, crystalline powder, SnF2, slightly soluble in water: used as a source of fluorine in the prevention of dental caries, esp. as a toothpaste additive. Also called tin difluoride, tin fluoride.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

stannous chloridestannum
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