duster

UK: /ˈdʌstə^r/ US: /ˈdʌstɚ/ ,(dus′tər)

WordReference Random House Learner's Dictionary of American English © 2026

dust•er /ˈdʌstɚ/   n. [countable]

1. a cloth, etc., for removing dust.
2. an apparatus for sprinkling dust, powder, or the like.
3. a person employed in spreading insecticide on crops from a low-flying aircraft.

WordReference Random House Unabridged Dictionary of American English © 2026

dust•er  (dus′tər), n. 

1. a person or thing that removes or applies dust.
2. a cloth, brush, etc., for removing dust.
3. Clothing a lightweight housecoat.
4. an apparatus or device for sprinkling dust, powder, insecticide, or the like, esp. on plants.
5. a person employed in spreading insecticidal dusts or the like on crops from a low-flying plane.
6. Clothing a long, light overgarment, worn esp. in the early days of open automobiles to protect the clothing from dust.
7. Clothing a summer-weight coat for women that is loose-fitting and often unlined.
8. Meteorology See dust storm. 
9. Sport [Baseball.] a ball purposely thrown by a pitcher at or dangerously close to a batter.
10. Geology See dry hole. 
11. Military (cap.) a self-propelled U.S. antiaircraft gun of the 1950s, armed with twin 40mm cannon.

• dust + -er¹ 1570–80

Collins Concise English Dictionary © HarperCollins Publishers::

duster / ˈdʌstə/ noun

1. a cloth used for dusting furniture, etc
   US name: dust cloth
2. a machine for blowing out dust over trees or crops
3. a person or thing that dusts