stannous fluoride definition by American Heritage Dictionary
nounThe American Heritage® Dictionary of the English Language, 4th edition Copyright © 2010 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
A white powder, SnF2, used to fluoridate toothpaste.
stannous fluoride - Medical Definition
A preparation of stannous tin and fluoride used to fluoridate toothpaste and other dental preparations.