To consume gradually, as by chemical reaction or friction
Also eventually, hard water can corrode metal, including your water pipes.
Once the potassium hydroxide reaches the metal terminals or connectors, it causes them to corrode producing a powder that is a greenish blue color.
Silver tends to corrode when it comes in touch with the sulfur in your body.
The reason behind this is that nickel does not corrode like lead.
Brilliance Anti-Tarnish Finishes are designed not to corrode and to look like new for the life of the faucet.