Dictionary.net

Relating to the zygoma.

Pertaining to the zygoma or cheek-bone. Zygomatic muscles are two muscles of the face, which rise from the zygomatic bone, and are inserted into the corner of the mouth. Zygomatic processes, the processes of the temporal and check bones, which unite to form the zygomatic arch. Zygomatic suture, the suture which joins the zygomatic processes of the temporal and cheek bones.

Pert. to the zygoma, a bony arch at the upper part of the side of the face; pert. to the cheek-bone.

Of or the zygoma.