supraoccipital adjective 2noun 1forms 1 adjective2 •Situated over, or in the upper part of, the occiput. •Relating to the supraoccipital bone. noun1 •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.Although the sutures are difficult to trace, the supraoccipital contacts the parietal anteriorly at a tight interdigitated suture, and contacts the ophistotic posterolaterally at a straight suture. — 2016 formssupraoccipitals