[kuh-roh-zhuh
n] 
| 1. | the act or process of corroding; condition of being corroded. |
| 2. | a product of corroding, as rust. |
| cor·ro·sion (kə-rō'zhən) n.
[Middle English corosioun, corrosion of tissue, from Old French corrosion, from Medieval Latin corrōsiō, corrōsiōn-, the act of gnawing, from Latin corrōsus, past participle of corrōdere, to gnaw away; see corrode.] |