\Ce*phal"ic\, a. [L. cephalicus, Gr. ?, fr. ? head: cf.
F. c['e]phalique.] (Anat.)
Of or pertaining to the head. See the Note under {Anterior}.
{Cephalic index} (Anat.), the ratio of the breadth of the
   cranium to the length, which is taken as the standard, and
   equal to 100; the breadth index.
{Cephalic vein}, a large vein running from the back of the
   head alond the arm; -- so named because the ancients used
   to open it for disorders of the head. --Dunglison.

\Ce*pha"lic\, n.
A medicine for headache, or other disorder in the head.