

The bike was covered in rust after being left outside.
A reddish-brown substance that forms on iron or steel when it is exposed to moisture and air.
The old car had patches of rust on the doors.
He noticed rust forming on the metal fence.
The tools were rusty after being left in the rain.
surface rust
rust removal
rust prevention
corrosion
oxidation
decay
The metal will rust if you don't keep it dry.
To become covered with rust or to cause something to become rusty.
The bike will rust if left outside in the rain.
Don't let the tools rust in the shed.
The old car began to rust after years of neglect.
rust away
rust prevention
rust protection
corrode
oxidize
decay