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stannous fluoride

noun

a white, crystalline powder, SnF2, slightly soluble in water: used as a source of fluorine in the prevention of dental caries, especially as a toothpaste additive.
Also called tin difluoride, tin fluoride.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
stannous fluoride in Medicine

stannous fluoride

n.

A preparation of stannous tin and fluoride used to fluoridate toothpaste and other dental preparations.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.