Medical Definition of motor
1: causing or imparting motion
2: of, relating to, or being a motor neuron or a nerve containing motor neurons <motor fibers> <motor cells>
3: of, relating to, concerned with, or involving muscular movement <motor areas of the brain>
Learn More about motor
Seen and Heard
What made you want to look up motor? Please tell us where you read or heard it (including the quote, if possible).