Corrosion (noun)

1. The gradual destruction of metal, stone, or other materials by chemical reactions with substances such as air, moisture, or acids.
2. A gradual decay or deterioration due to chemical processes.

Origin:

Late latin corrosion-, corrosio, from latin corrodere.

Examples:

1. The corrosion of the iron gate was a result of exposure to the elements.
2. Corrosion of the pipes caused water to leak from the plumbing.
3. The corrosion of the battery terminals was preventing the car from starting.
4. The corrosion of the metal hull caused the ship to sink.
5. The corrosion of the coins was a result of being buried in the ground for many years.