Cor·rode v. t. [imp. & p. p. Corroded; p. pr. & vb. n. Corroding.]
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.
adj : eaten away as by acid or oxidation