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1. (n) machine that converts other forms of energy into mechanical energy and so imparts motion
2. (v) travel or be transported in a vehicle; "We drove to the university every morning" "They motored to London for the theater"
3. (n) a nonspecific agent that imparts motion; "happiness is the aim of all men and the motor of all action"
4. (s) causing or able to cause motion; "a motive force" "motive power" "motor energy"
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