What does the word muffler mean?

Usage examples for muffler

  1. " It ain't fair," he said to Miss de Lisle, who sobbed into the muffler she was knitting. – Captain Jim by Mary Grant Bruce
  2. His bland, abstracted eyes were already on Fritzing, and he was making rapid mental notes of the goggles, the muffler, the cap pulled down over the ears. – The Princess Priscilla's Fortnight by Elizabeth von Arnim