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Definition of Rust


  1. The reddish yellow coating formed on iron when exposed to moist air, consisting of ferric oxide or hydroxide; hence, by extension, any metallic film of corrosion.
  2. A minute mold or fungus forming reddish or rusty spots on the leaves and stems of cereal and other grasses (Trichobasis Rubigo-vera), now usually believed to be a form or condition of the corn mildew (Puccinia graminis). As rust, it has solitary reddish spores; as corn mildew, the spores are double and blackish.
  3. That which resembles rust in appearance or effects.
  4. A composition used in making a rust joint. See Rust joint, below.
  5. Foul matter arising from degeneration; as, rust on salted meat.
  6. Corrosive or injurious accretion or influence.
  7. To contract rust; to be or become oxidized.
  8. To be affected with the parasitic fungus called rust; also, to acquire a rusty appearance, as plants.
  9. To degenerate in idleness; to become dull or impaired by inaction.
  10. To cause to contract rust; to corrode with rust; to affect with rust of any kind.
  11. To impair by time and inactivity.
More "Rust" Quotations

Rust Translations

rust in Dutch is verroesten, roesten
rust in Finnish is ruoste
rust in French is rouille, se rouiller
rust in German is einrosten, verrosten
rust in Italian is arrugginire, griglia
rust in Norwegian is rust
rust in Swedish is rost, rosta