a combining form meaning “arm,” “upper arm,” used in the formation of compound words:
indicating a brachium: brachiopod
adjective of, relating to, or supplying the arm and head: brachiocephalic artery
a major artery, arising from the arch of the aorta, that supplies blood to the right arm and the head.
either of two major veins, formed by the merger of the subclavian and internal jugular veins, that drain blood from the head and arms.