duster

Etymology

From dust + -er.

noun

1. An object, now especially a cloth, used for dusting surfaces etc.
2. Someone who dusts.
3. A loose-fitting long coat.
4. (paper-making) A revolving wire-cloth cylinder which removes the dust from rags, etc.
5. (milling) A blowing-machine for separating the flour from the bran.
6. (oil and gas) A dry drill hole, one that does not produce oil or gas.
7. (military, informal) A vehicle-mounted, multi-barrelled, anti-aircraft gun.
8. (Philippines) A type of loose dress worn at home as well within the vicinity of one's home.
9. (education) A block of felt strips, shaped ergonomically, used to remove chalk from a blackboard.
10. (baseball) A high pitch toward the batter.