rerebrace

A rerebrace (sometimes known as an upper cannon) is a piece of plate armour designed to protect the upper arms (above the elbow).
See more at Wikipedia.org...

rerebrace
\rere"brace`\ (r?r"br?s"), n. [f. arri&?;re-bras.] (anc. armor) armor for the upper part of the arm.
rerebrace
n : cannon that provides plate armor for the upper arm [syn: upper cannon ]

(n.)
Armor for the upper part of the arm.
  

Noun
1. cannon that provides plate armor for the upper arm
(synonym) upper cannon
(hypernym) cannon
(part-holonym) body armor, body armour, suit of armor, suit of armour, coat of mail, cataphract

The defense for the upper arm, also known as part of the canon. See Arm Harness for development details.