WordNet
frontal eminence
n. either prominence of the frontal bone above each orbit
Wikipedia
Frontal eminence
A frontal eminence (or tuber frontale) refers to one of two rounded elevations on the frontal bone that lie about three centimeters above the supraorbital margin on each side of the frontal suture.
Eminences vary in size in different individuals, are occasionally unsymmetrical, and are especially prominent in young skulls. The surface of the bone above them is smooth, and covered by the galea aponeurotica.