airbrake

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. a small parachute or articulated flap to reduce the speed of an aircraft
• Syn:
dive brake
• Hypernyms:
restraint, constraint
2. a vehicular brake that operates by compressed air;
especially for heavy vehicles
• Hypernyms:
power brake
• Part Holonyms:
motor vehicle, automotive vehicle