Carotid

n. [Fr. carotide, N. Lat. carotis, -idis, Gr. pl. καρωτίδες, from κάρος, heavy sleep, κάρα, head.] (Anat.) A large artery conveying the blood from the neck to the head. There are two, one on each side of the neck. The ancients supposed that drowsiness was connected with an increased flow of blood through them.