- motor [mōt′ər]n.[L, a mover < motus, pp. of movere,MOVE]1. anything that produces or imparts motion2. an engine; esp., an internal-combustion engine for propelling a vehicle3. MOTOR VEHICLE4. Elec. a machine for converting electric energy into mechanical energyadj.1. producing or imparting motion2. of, having to do with, or powered by a motor or motors [motor oil, motor parts, a motor bicycle]3. of, by, or for motor vehicles [a motor trip]4. for motorists [a motor inn]5. designating or of a nerve carrying impulses from the central nervous system to a muscle that produces motion6. of, manifested by, or involving muscular movements [a motor reflex, motor skills]vi.1. to ride in a motor vehicle; esp., to travel by automobile2. Informal to walk or otherwise proceed at a swift or steady pacevt.Chiefly Brit. to convey by automobile
English World dictionary. V. Neufeldt. 2014.