What is the meaning of rusted?

verb

• Become destroyed by water, air, or a corrosive such as an acid.
  • usage: "The metal corroded"; "The pipes rusted"
  • synonyms: corrode, rust
• Cause to deteriorate due to the action of water, air, or an acid.
  • usage: "The acid corroded the metal"; "The steady dripping of water rusted the metal stopper in the sink"
  • synonyms: corrode, eat, rust
• Become coated with oxide.
  • synonyms: rust

adjective

• Having accumulated rust.
  • usage: "rusted hinges"