Rust

1.

(The reddish brown coating formed on iron or steel during exposure to air, or damp, coating formed on iron or various other metals by corrosion; reddish fungus disease on plants; a plant disease with rust colored spots the affected with rust; to lose quality or efficiency by lack of use) iron rust ច្រេះ
Example: Iron rust, away in idleness.

1.

(TRANSITIVE) (1. To corrode or subject (a metal) to rust formation. 2. To impair or spoil, as by misuse or inactivity. 3. To color (something) a strong brown) ធ្វើអោយ ច្រេះចាប់

• black rust
  - ជំងឺគ្រាប់ធញ្ញជាតិ
• brown rust
  - ជំងឺដុះផ្សិតដែលបង្កបញ្ហាដល់គ្រាប់ (ពោត)

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.

5.

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

6.

Corrosive or injurious accretion or influence.

1.

(INTRANSITIVE) To contract rust; to be or become oxidized.

2.

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

3.

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

4.

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

5.

(TRANSITIVE) To impair by time and inactivity.