Brachial \Brach"i*al\or, a. [L. brachialis (bracch-), from bracchium (bracch-) arm: cf. F. brachial.]

1. (Anat.) Pertaining or belonging to the arm; as, the brachial artery; the brachial nerve.

2. Of the nature of an arm; resembling an arm.

Source: Webster's Revised Unabridged Dictionary (1913)