- noun a white soluble salt that is toxic and turns black on exposure to light while in contact with organic matter. Used in photography, and as an analytical reagent, antiseptic and astringent.
- Colorless crystals whose chemical formula is AgNO3. It is used in plating, for silvering mirrors, and in photography.
- noun a salt of silver that is mixed with a cream or solution and used, e.g., to disinfect burns or to kill warts