cranial bone n.
Any of the bones surrounding the brain, comprising the paired parietal and temporal bones and the unpaired occipital, frontal sphenoid, and ethmoid bones.
- Cranial cavity
cranial cavity n. The space or hollow within the skull. Also called intracranial cavity.
- Cranial flexure
cranial flexure n. See cephalic flexure.
- Cranial fossa
cranial fossa n. The internal base of the skull in which rest the frontal and temporal lobes of the brain, the pituitary gland, the cerebellum, the pons, and the medulla oblongata.
noun, Craniometry. 1. cephalic index. noun 1. the ratio of the greatest length to the greatest width of the cranium, multiplied by 100: used in comparative anthropology Compare cephalic index cranial index n. The ratio of the maximum breadth to the maximum length of the skull, multiplied by 100.