Definition of corrodes:
(v) :
(transitive) To eat away bit by bit; to wear away or diminish by gradually separating or destroying small particles of, as by action of a strong acid or a caustic alkali.
(v) :
(transitive) To consume; to wear away; to prey upon; to impair.
(v) :
(intransitive) To have corrosive action; to be subject to corrosion.