1
: one that imparts motion
specifically
: prime mover
2
: any of various power units that develop energy or impart motion: such as
a
: a small compact engine
b
: internal combustion engine
especially
: a gasoline engine
c
: a rotating machine that transforms electrical energy into mechanical energy
3
: motor vehicle
especially
: automobile
1
a
: causing or imparting motion
b
: of, relating to, or being a motor neuron or a nerve containing motor neurons
motor fiber
c
: of, relating to, concerned with, or involving muscular movement
motor areas of the brain
2
a
: equipped with or driven by a motor
b
: of, relating to, or involving an automobile
c
: designed for motor vehicles or motorists
motored; motoring; motors
1
: to travel by automobile : drive
2
: to move or proceed at a vigorous steady pace
motored down the field for a touchdown
: to transport by automobile
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Merriam-Webster unabridged
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