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.

Cephalic, n.

A medicine for headache, or other disorder in the head. [1913 Webster]

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OXFORD DICTIONARY

Cephalic, adj. of or in the head.

Idiom

cephalic index Anthropol. a number expressing the ratio of a head's greatest breadth and length.

Etymology

F c{eacute}phalique f. L cephalicus f. Gk kephalikos f. kephale head

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