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mo·tor  (mtr)
1. Something, such as a machine or an engine, that produces or imparts motion.
2. A device that converts any form of energy into mechanical energy, especially an internal-combustion engine or an arrangement of coils and magnets that converts electric current into mechanical power.
3. A motor vehicle, especially an automobile: It was a night of lovers. All along the highway ... motors were parked and dim figures were clasped in revery (Sinclair Lewis).
1. Causing or producing motion: motor power.
2. Driven by or having a motor.
3. Of or for motors or motor vehicles: motor oil.
4. Of, relating to, or designating nerves that carry impulses from the nerve centers to the muscles.
5. Involving or relating to movements of the muscles: motor coordination; a motor reflex.
v. mo·tored, mo·tor·ing, mo·tors
To drive or travel in a motor vehicle.
To carry by motor vehicle.

[Middle English motour, prime mover, from Latin mtor, from mtus, past participle of movre, to move; see meu- in Indo-European roots.]

motor [ˈməʊtə]
1. (Engineering / Automotive Engineering)
a.  the engine, esp an internal-combustion engine, of a vehicle
b.  (as modifier) a motor scooter
2. (Engineering / Electrical Engineering) 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. (Engineering / Mechanical Engineering) 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. (Engineering / Automotive Engineering)
a.  Chiefly Brit a car or other motor vehicle
b.  as modifier motor spares
1. (Physics / General Physics) producing or causing motion
2. (Life Sciences & Allied Applications / Physiology) Physiol
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
1. (Engineering / Automotive Engineering) (intr) to travel by car
2. (Engineering / Automotive Engineering) (tr) Brit to transport by car
3. (intr) Informal to move fast; make good progress
4. (tr) to motivate
[from Latin mōtor a mover, from movēre to move]

motor  (mtr)
A machine that uses energy, such as electric or chemical energy (as from burning a fuel), to produce mechanical motion. See also engine.
Involving the muscles or the nerves that are connected to them. Compare sensory.

motor  /motr/  n. a machine that creates power, such as the engine in a car: An air conditioner uses an electric motor to cool the air and turn a fan.
v. [I;T] to travel in a vehicle: For our vacation, we motored through California.
adj. related to movement of the muscles: She has good motor coordination. motor

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