1. A mechanical device that cleans the windscreen
   "The heavy rain made it difficult to see even with the windscreen wipers at full speed";
   - windshield wiper [N. Amer], windscreen wiper [Brit, Cdn], wiper blade
    
2. Contact consisting of a conducting arm that rotates over a series of fixed contacts and comes to rest on an outlet
   "The mechanic replaced the worn wiper arm to improve the windscreen wiper's performance";
   - wiper arm, contact arm
    
3. A worker who wipes
   "The wiper cleaned the tables after each customer left"

Derived forms: wipers

Type of: contact, mechanical device, tangency, worker

Part of: automotive vehicle, motor vehicle, rheostat, selector, selector switch, variable resistor

Encyclopedia: Wiper