Rust
Part of speech: noun
Definition: The deteriorated state of iron or steel as a result of moisture and oxidation. (colour) A reddish-brown color. A disease of plants caused by a reddish-brown fungus.
Part of speech: verb
Definition: to oxidize, especially of iron or steel. to cause to oxidize.
Example sentence: Just getting from the airport straight to the gym is gonna be your best bet to knock off that rust and wake yourself up and get that blood flowing. You sit in a car or a plane cramped up, you lose a lot of blood flow and get that swelling in your legs. There are all kinds of dangers in sitting still too long.
Corrode
Part of speech: verb
Definition: To eat away by degrees; to wear away or diminish by gradually separating or destroying small particles of, as by action of a strong acid or a caustic alkali.To consume; to wear away; to prey upon; to impair.To have corrosive action; to be subject to corrosion.