Source : Webster's Revised Unabridged Dictionary (1913)

Corrode \Cor*rode"\ (k?r-r?d") v. t. [imp. & p. p. {Corroded};
   p. pr. & vb. n. {Corroding}.] [L. corrodere, -rosum; cor +
   rodere to gnaw: cf. F. corroder. See {Rodent}.]
   1. 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.

            Aqua fortis corroding copper . . . is wont to reduce
            it to a green-blue solution.          --Boyle.

   2. To consume; to wear away; to prey upon; to impair.

Corrode \Cor*rode"\, v. i.
   To have corrosive action; to be subject to corrosion.

   {Corroding lead}, lead sufficiently pure to be used in making
      white lead by a process of corroding.

   Syn: To canker; gnaw; rust; waste; wear away.

Source : WordNet®

corrode
     v 1: 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"
          [syn: {eat}, {rust}]
     2: become destroyed by water, air, or an etching chemical such
        as an acid; "The metal corroded"; "The pipes rusted" [syn:
         {rust}]