To degenerate in idleness; to become dull or impaired by
inaction.

To cause to contract rust; to corrode with rust; to affect
with rust of any kind.

Foul matter arising from degeneration; as, rust on salted
meat.

To be affected with the parasitic fungus called rust;
also, to acquire a rusty appearance, as plants.

Corrosive or injurious accretion or influence.

That which resembles rust in appearance or effects.

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.

i. pas. You can use a rust preventive grease. (Pas önleyici yağ kullanabilirsin.)

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.

To contract rust; to be or become oxidized.