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1. Become destroyed by water, air, or a corrosive such as an acid
   "The pipes rusted"
   - corrode
    
2. Cause to deteriorate due to the action of water, air, or an acid
   "The steady dripping of water rusted the metal stopper in the sink"
   - corrode, eat
    
3. Become coated with oxide

1. A red or brown oxide coating on iron or steel caused by the action of oxygen and moisture
    
2. A plant disease that produces a reddish-brown discolouration of leaves and stems; caused by various rust fungi
    
3. The formation of reddish-brown ferric oxides on iron by low-temperature oxidation in the presence of water
   - rusting
    
4. Any of various fungi causing rust disease in plants
   - rust fungus

1. Of the brown colour of rust
   - rusty, rust-brown

Derived forms: rusted, rusting, rusts

See also: chromatic, rusty

Type of: corroding, corrosion, crumble, damage, decay, dilapidate, erosion, ferric oxide, fungus, oxidate, oxidation, oxidisation [Brit], oxidise [Brit], oxidization, oxidize, plant disease

Part of: order Uredinales, Uredinales

Encyclopedia: Rust, Austria Rust Rust, Germany Rust, California