The definition of a motor is anything that makes something move.(noun)
An example of a motor is the steam engine of a train.
Motor is defined as something having to do with muscular movement.(adjective)
An example of motor is being able to move your arms up and down, to have motor skills.
See motor in Webster's New World College Dictionary
Origin: L, a mover < motus, pp. of movere, move
See motor in American Heritage Dictionary 4
Origin: Middle English motour, prime mover
Origin: , from Latin mōtor
Origin: , from mōtus
Origin: , past participle of movēre, to move; see meuə- in Indo-European roots.
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