This is the strong, vertical buttress-like process projecting superiorly to form a deep serrate articulation with the lateral base of the supra-orbital margin. It contributes to the lateral wall of the orbit. Its posterior margin articulates with the greater wing of the sphenoid bone. Near the superior margin of its orbital surface, just within the orbital rim, is a small tubercle providing attachment for the lateral palpebral ligament, suspensory ligament, and part of the aponeurosis for the levator palpebrae superioris.

This word comes from the Latin words frons meaning front and frontis referring to the forehead or brow. The word denotes something anterior or a relation to the forehead or brow. The term process is Latin meaning to move forward. It denotes a projection of bone.

Processus frontalis ossis zygomatici