wiper motor(n = noun.artifact) - electric motor that moves the windshield wiper;
is a kind of electric motor

diesel motor, electric motor, hereditary motor and sensory neuropathy, induction motor, motor, motor aphasia, motor area, motor ataxia, motor car, motor city, motor control, motor cortex, motor cycle, motor end plate, motor generator, motor home, motor horn, motor hotel, motor inn, motor lodge, motor memory, motor mower, motor nerve, motor nerve fiber, motor neuron, motor oil, motor pool, motor region, motor scooter, motor torpedo boat, motor vehicle, outboard motor, pyramidal motor system, series motor, starter motor, starting motor, stepping motor, synchronous motor, water motor, windscreen wiper, windshield wiper, wiper, wiper arm, wiper blade