muffler
Concise Oxford English Dictionary © 2008 Oxford University Press:
muffler/ˈmʌflə(r)/
▶noun
- 1 a wrap or scarf worn around the neck and face for warmth.
- 2 a device used to deaden the sound of a drum, bell, piano, or other instrument.
- 3 N. Amer. a silencer for a motor vehicle exhaust.
'muffler' also found in these Oxford entries:

