from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Of or involving the arm and the head.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Of or pertaining to the arm and the head
from The Century Dictionary and Cyclopedia
- In anatomy, of or pertaining both to the upper arm and to the head: as, the brachiocephalic (innominate) artery and veins.
brachi(um) + cephalic.(American Heritage® Dictionary of the English Language, Fourth Edition)