1. in a manner using compressed air or gas pressure
Usage: technical

Examples

• The drill operates pneumatically, powered by compressed air.
• The doors open and close pneumatically on city buses.
• The factory equipment is controlled pneumatically for safety.
• The jackhammer works pneumatically to break up concrete.
• Mail is transported pneumatically through tubes in some buildings.
• The brakes engage pneumatically when air pressure drops.