1. operated by air pressure or compressed air
2. relating to air or gases
Usage: technical
3. filled with air

Examples

• The mechanic used a pneumatic drill to break up the concrete.
• Pneumatic tubes were once used to send messages between floors in office buildings.
• The car’s pneumatic tires provided a smooth ride over rough terrain.
• Factory workers operated pneumatic tools powered by compressed air.
• The dentist’s pneumatic chair adjusted smoothly to the right height.
• Pneumatic systems are commonly used in manufacturing plants.
• The bus doors opened with a pneumatic hiss.