motor

American  

[moh-ter] / ˈmoʊ tər /

noun

1. a comparatively small and powerful engine, especially an internal-combustion engine in an automobile, motorboat, or the like.

2. any self-powered vehicle.

3. a person or thing that imparts motion, especially a contrivance, as a steam engine, that receives and modifies energy from some natural source in order to utilize it in driving machinery.

4. Also called electric motor.  Electricity. a machine that converts electrical energy into mechanical energy, as an induction motor.

5. motors, stocks or bonds in automobile companies.

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adjective

1. pertaining to or operated by a motor.

2. of, for, by, or pertaining to motor vehicles.

   motor freight.

3. designed or for automobiles, their drivers, or their passengers.

   The hotel has a motor lobby in its parking garage for picking up and discharging passengers.

4. causing or producing motion.

5. Physiology. conveying an impulse that results or tends to result in motion, as a nerve.

6. Psychology, Physiology. Also of, relating to, or involving muscular movement.

   a motor response; motor images.

verb (used without object)

1. to ride or travel in an automobile; drive.

   They motored up the coast.

verb (used with object)

1. Chiefly British. to drive or transport by car.

   He motored his son to school.

motor British  

/ ˈməʊtə /

noun

1. 1. the engine, esp an internal-combustion engine, of a vehicle

   2. ( 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. 1. a car or other motor vehicle

   2. as modifier

      motor spares

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adjective

1. producing or causing motion

2. physiol

   1. of or relating to nerves or neurons that carry impulses that cause muscles to contract

   2. of or relating to movement or to muscles that induce movement

verb

1. (intr) to travel by car

2. (tr) to transport by car

3. informal (intr) to move fast; make good progress

4. (tr) to motivate

motor Scientific  

/ mō′tər /

1. A machine that uses energy, such as electric or chemical energy (as from burning a fuel), to produce mechanical motion.

2. See also engine

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1. Involving the muscles or the nerves that are connected to them.

2. Compare sensory

Other Word Forms

• multimotor noun

Etymology

Origin of motor

1580–90; < Latin mōtor mover, equivalent to mō- (variant stem of movēre to move ) + -tor -tor

Example Sentences

Still, wholesale trade weakened for a third month in the last four, pulled down by activity in motor vehicles and parts.

From The Wall Street Journal • Mar. 31, 2026

The FCA previously estimated 44% of all motor finance agreements made from 2007 to late 2024 would be eligible for payouts, totalling more than £8bn.

From BBC • Mar. 29, 2026

Learn more about associations between contralesional neuroplasticity and motor impairment by viewing this video made by the Stevens INI.

From Science Daily • Mar. 29, 2026

Driven by a love of motor racing, Michaelian eventually talked his way onto the staff of the Long Beach Grand Prix.

From Los Angeles Times • Mar. 22, 2026

He was about to turn on the motor when he saw a swirl of white hovering where the river should be.

From "A Wish in the Dark" by Christina Soontornvat

Related Words

• cylinder
• generator
• transformer
• turbine