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.
© Webster 1913.