'Corrosion' definitions:

Definition of 'corrosion'

From: WordNet
noun
A state of deterioration in metals caused by oxidation or chemical action
noun
Erosion by chemical action [syn: corrosion, corroding, erosion]

Definition of 'Corrosion'

From: GCIDE
  • Corrosion \Cor*ro"sion\ (k?r-r?"zh?n), n. [LL. corrosio: cf. F. corrosion. See Corrode.] The action or effect of corrosive agents, or the process of corrosive change; as, the rusting of iron is a variety of corrosion. [1913 Webster]
  • Corrosion is a particular species of dissolution of bodies, either by an acid or a saline menstruum. --John Quincy. [1913 Webster]