ˈ ̷ ̷ˌ ̷ ̷ noun
1.
a. : the part of an overcheck that connects the bit with the cavesson and overcheck rein
b. : an ornamental harness brass placed pendant from the cavesson
2. : the part of a gas mask or other respirator that fits over the face and is provided with eyepieces and a breathing device