(1) - Corrode (v. i.) To have corrosive action; to be subject to corrosion. (2) - Corrode (v. t.) To consume; to wear away; to prey upon; to impair. (3) - Corrode (v. t.) 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.