corrode

Short definition from Wiktionary

Verb

1. 1
   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.
2. 2
   To consume; to wear away; to prey upon; to impair.
3. 3
   To have corrosive action; to be subject to corrosion.