|1.||a. the engine, esp an internal-combustion engine, of a vehicle|
|b. (as modifier): a motor scooter|
|2.||Also called: electric motor a machine that converts electrical energy into mechanical energy by means of the forces exerted on a current-carrying coil placed in a magnetic field|
|3.||any device that converts another form of energy into mechanical energy to produce motion|
|4.||an indispensable part or player that moves a process or system along|
|5.||a. chiefly (Brit) a car or other motor vehicle|
|b. as modifier: motor spares|
|6.||producing or causing motion|
|a. of or relating to nerves or neurons that carry impulses that cause muscles to contract|
|b. of or relating to movement or to muscles that induce movement|
|8.||(intr) to travel by car|
|9.||(Brit) (tr) to transport by car|
|10.||informal (intr) to move fast; make good progress|
|11.||(tr) to motivate|
|[C16: from Latin mōtor a mover, from movēre to move]|
motor mo·tor (mō'tər)
Causing or producing motion.
Of or being nerves that carry impulses from the nerve centers to the muscles.
Involving or relating to movements of the muscles.
Of or relating to an organism's overt reaction to a stimulus.