Definitions

1. noun

A device or agent that stimulates, especially one that causes an electric current in a circuit.

“The heart is a natural stimulator for the circulatory system.”

2. noun

Something that stimulates, especially an activity or interest that arouses enthusiasm or excitement.

“Reading about space travel was a great stimulator for her interest in astronomy.”

3. verb

To stimulate, especially to cause an electric current to flow in a circuit.

“The battery will stimulator the small motor.”