| 1. | Also called iron rust. the red or orange coating that forms on the surface of iron when exposed to air and moisture, consisting chiefly of ferric hydroxide and ferric oxide formed by oxidation. |
| 2. | any film or coating on metal caused by oxidation. |
| 3. | a stain resembling this coating. |
| 4. | any growth, habit, influence, or agency tending to injure, deteriorate, or impair the mind, character, abilities, usefulness, etc. |
| 5. | Plant Pathology.
|
| 6. | reddish yellow, reddish brown, or yellowish red. |
| 7. | to become or grow rusty, as iron. |
| 8. | to contract rust. |
| 9. | to deteriorate or become impaired, as through inaction or disuse. |
| 10. | to become rust-colored. |
| 11. | to affect with rust. |
| 12. | to impair as if with rust. |
| 13. | to make rust-colored. |
| 14. | having the color rust. |
| 15. | rust out, (of metal pipes, machinery, etc.) to decay and become unusable through the action of rust. |
| 16. | rust through, to develop holes, breaks, or the like, because of rust. |
| 17. | rust together, to join two metal pieces, as iron pipes, by causing the joint to rust. |
| rust fungus n. Any of various fungi of the order Uredinales that are injurious to a wide variety of plants. |
rust (rŭst)
n.
Any of a group of parasitic fungi of the order Uredinales that are plant pathogens, especially of cereal grains, and that can produce allergy in humans when inhaled in large numbers.
| rust (rŭst) Pronunciation Key
Noun
Verb To become corroded or oxidized. |