/dus"teuhr/ , n.
1. a person or thing that removes or applies dust.
2. a cloth, brush, etc., for removing dust.
3. 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. a long, light overgarment, worn esp. in the early days of open automobiles to protect the clothing from dust.
7. a summer-weight coat for women that is loose-fitting and often unlined.
8. See dust storm .
9. Baseball. a ball purposely thrown by a pitcher at or dangerously close to a batter.
10. See dry hole .
11. ( cap. ) Mil. a self-propelled U.S. antiaircraft gun of the 1950s, armed with twin 40mm cannon.
[ 1570-80; DUST + -ER 1 ]