[brey-kee-uh
l, brak-ee-] 
Anatomy, Zoology| 1. | belonging to the arm, foreleg, wing, pectoral fin, or other forelimb of a vertebrate. |
| 2. | belonging to the upper part of such a member, from the shoulder to the elbow. |
| 3. | armlike, as an appendage. |
| 4. | a brachial part or structure. |
| bra·chi·al (brā'kē-əl, brāk'ē-) adj. Of, relating to, or resembling the arm or a similar or homologous part, such as the foreleg, wing, or other forelimb of a vertebrate: the brachial artery. [From Latin brācchiālis, from brācchium, arm; see brachium.] |
brachial bra·chi·al (brā'kē-əl)
adj.
Relating to the arm.