1. affected by rust; corroded by oxidation

1. past tense and past participle of rust; became corroded or caused to become corroded

Examples

• The old car had rusted bumpers and fenders.
• She found a rusted key buried in the garden.
• The metal gate had rusted shut after years of neglect.
• Rain and salt air rusted the ship’s hull.
• The tools rusted in the damp basement.
• His bike chain had rusted from being left outside.
• The rusted pipes needed to be replaced immediately.