| Noun | 1. | duster - a windstorm that lifts up clouds of dust or sand; "it was the kind of duster not experienced in years"windstorm - a storm consisting of violent winds | |
| 2. | duster - a loose coverall (coat or frock) reaching down to the anklescoverall - a loose-fitting protective garment that is worn over other clothing | |
| 3. | duster - a piece of cloth used for dusting | |
| 4. | duster - a pitch thrown deliberately close to the batterpitch, delivery - (baseball) the throwing of a baseball by a pitcher to a batter | |