1. a person or thing that stimulates or encourages activity, growth, or development
2. a device or substance that increases physiological or psychological activity
Usage: medical; technical

Examples

• The teacher acted as a stimulator for creative thinking in her students.
• Economic growth requires a stimulator to boost consumer spending.
• The electrical stimulator helped improve muscle function after the injury.
• Coffee is a natural stimulator that increases alertness.
• The new policy served as a stimulator for innovation in the tech industry.
• The physical therapist used a nerve stimulator during treatment.