The adjective occipital, in zoology, means pertaining to the occiput (rear of the skull). Occipital is a descriptor for several areas of animal and human anatomy. External occipital protuberance Internal occipital crest Greater occipital nerve Lesser occipital nerve Occipital artery Occipital bone Occipital bun Occipital condyle Occipital groove Occipital lobe Occipital plane Occipital pole Occipital ridge Occipital scales Occipital triangle Occipital vein Parieto-occipital sulcus PGO (Ponto-geniculo-occipital) waves Preoccipital notch References Anatomical terminology