Definition of supraoccipital in US English:

supraoccipital

adjective

Anatomy Zoology
  • Situated above or in the upper part of the occipital region of the skull or head; specifically designating the upper part of the occipital bone, or a separate bone corresponding to this.

noun

Anatomy Zoology
  • A supraoccipital bone.

Origin

Mid 19th century. From supra- + occipital. In use as adjective originally after French sus-occipital. In use as noun after French sur-occipital.