silencer

Từ điển WordNet v3.1 - WordNet Dictionary

noun

1. short tube attached to the muzzle of a gun that deadens the sound of firing
• Derivationally related forms:
silence
• Hypernyms:
tube, tubing
2. a tubular acoustic device inserted in the exhaust system that is designed to reduce noise
• Syn:
muffler
• Derivationally related forms:
muffle (for: muffler), silence
• Hypernyms:
acoustic device
• Part Holonyms:
exhaust, exhaust system