Frontal lobe is the anterior-most of five lobes of the cerebral hemisphere. It is bounded by the central sulcus on its posterior border and by the longitudinal cerebral fissure on its medial border.
ID
http://www.radlex.org/RID/RID6440
Definition
Frontal lobe is the anterior-most of five lobes of the cerebral hemisphere. It is bounded by the central sulcus on its posterior border and by the longitudinal cerebral fissure on its medial border.