CRANIUM, in anatomy, an assemblage of several bones which cover and enclose the brain and cerebel-
lum, popularly called the skull. See ANATOMY, no 11. The word comes from the Greek κρανίον, of κρανίον, galea, "helmet;" because it serves to defend the brain like a head-piece. Pezron, again, derives κρανίον from the Celtic cran, because of its roundness.