![tin-fluoride tin-fluoride](https://www.tekportal.net/wp-content/uploads/2018/11/tin-fluoride.png)
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.
noun
- stannous fluoride.
n.
- A preparation of stannous tin and fluoride used to fluoridate toothpaste and other dental preparations.