n. 支撑者, 保护带

Bracer \Bra"cer\, n.
1. That which braces, binds, or makes firm; a band or
bandage.

2. A covering to protect the arm of the bowman from the
vibration of the string; also, a brassart. --Chaucer.

3. A medicine, as an astringent or a tonic, which gives
tension or tone to any part of the body. --Johnson.