DRIVER

n. 1 (often in comb.) a person who drives a vehicle (bus-driver; engine-driver). 2 Golf a club with a flat face and wooden head, used for driving from the tee. 3 Electr. a device or part of a circuit providing power for output. 4 Mech. a wheel etc. receiving power directly and transmitting motion to other parts. in the driver's seat in charge. driverless adj.