Supraoccipital \Su`pra*oc*cip"i*tal\, a. (Anat.) Situated over, or in the upper part of, the occiput; of or pertaining to the supraoccipital bone. -- n. The supraoccipital bone.

Supraoccipital bone (Anat.), a bone on the dorsal side of the great foramen of the skull, usually forming a part of the occipital in the adult, but distinct in the young.

Source: Webster's Revised Unabridged Dictionary (1913)