motor

Forms

1.A machine or device that converts other energy forms into mechanical energy, or imparts motion.
- The door can close by itself because there's a small motor built into it.
2.A source of power for something; an inspiration; a driving force.
3.Any protein capable of converting chemical energy into mechanical work.
4.A motor car, or automobile, sometimes extended to other powered vehicles, such as goods vehicles.
- Motor insurance is expensive for youngsters.
- 'However, you go and try your luck and see how you like it.' With that he flung himself into his motor and was off.
- The screeching of brakes, the monotonous blare of motor horns, the clip-clip of shoes on slippery pavements, the rustling of wet mackintoshes were all part of the great metropolis.

1.Relating to the ability to move.
- She has excellent motor skills.
2.Propelled by an internal combustion engine (as opposed to a steam engine or turbine).
- A motor yacht for its size has about 30 per cent more accommodations than a steamer of the same size.

1.To rotate a jet engine or turboprop using the engine's starter, without introducing fuel into the engine.
- During startup, the engine should be motored for 20 to 30 seconds to allow the shafts to straighten out, as they may have become bowed under their own weight while the airplane was sitting on the ground.
2.To progress at a brisk pace.(informal)
- Sales were slow at first, but now things are really motoring.
- More recently, ORR has been developing its knowledge and skills in cyber and digital security. Prosser says this is really "motoring".

Uncommon· #2658

Etymology tree

Proto-Indo-European *m(y)ewh₁-

Proto-Indo-European *-yeti

Proto-Indo-European *-éyeti

Proto-Indo-European *m(y)owh₁éyetider.

Proto-Italic *moweō

Latin moveō

Proto-Indo-European *-tōr

Proto-Italic *-tōr

Latin -tor

Latin mōtorder.

Middle English motour

English motor