n.
Function: adjective
Date: 1824
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