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.

cause to deteriorate due to the action of water, air, or an acid; "The acid corroded the metal"; "The steady dripping of water rusted the metal stopper in the sink"

become destroyed by water, air, or an etching chemical such as an acid; "The metal corroded"; "The pipes rusted"

To wear away gradually usually by chemical action. To weaken or destroy gradually.

To eat away the surface of a solid (especially metal), by chemical action.

to destroy or wear away a substance, usually a metal, especially by chemical action

To eat away gradually, usually be electro-chemical action.