1. [N. Amer] A tubular acoustic device inserted in the exhaust system that is designed to reduce noise
   "The new muffler significantly reduced the car's engine noise";
   - silencer [Brit]
    
2. A scarf worn around the neck
   "He wrapped the woollen muffler tightly to shield against the biting wind"
    
3. A device that decreases the amplitude of electronic, mechanical, acoustical, or aerodynamic oscillations
   "The car's muffler reduced the engine noise";
   - damper

Derived forms: mufflers

Type of: acoustic device, device, scarf

Part of: exhaust, exhaust system

Encyclopedia: Muffler