Definition of "vambrace"

To the cuirass were buckled the armour for the shoulders and arms, the first called Pouldrons, the second Brassarts, Garde bras, les avant bras, and corruptly in English, Vambraces. The vambraces included all the defence for the arms, from the pouldrons to the wrist. At the joint, or bending of the arm, the vambraces were cut obliquely, […]

1786, Francis Grose, A Treatise on Ancient Armour and Weapons‎, page 22

Thorin reached out for the vambrace and gauntlet that made up the armour's right arm.

2003, John Marco, The Devil's Armour, 2010, Electronic Edition, unnumbered page