fortress, fort - a fortified defensive structure. merlon - a solid section between two crenels in a crenelated battlement. bulwark, rampart, wall - an embankment built around a space for defensive purposes; they stormed the ramparts of the city; they blew the trumpet and the walls came tumbling down.
Definition of OCCIPITAL BONE. : a compound bone that forms the posterior part of the skull and bears a condyle by which the skull articulates with the atlas.See occipital bone defined for kids.ADVERTISEMENT. a compound bone that forms the posterior part of the skull and bears a condyle by which the skull articulates with the atlas. See occipital bone defined for kids.
The occipital lobe is one of the four major lobes of the cerebral cortex in the brain of mammals. The occipital lobe is the visual processing center of the mammalian brain containing most of the anatomical region of the visual cortex.The primary visual cortex is Brodmann area 17, commonly called V1 (visual one).one of the cortical lobes are defined by any internal structural features, but rather by the bones of the head bone that overlie them. Thus, the occipital lobe is defined as the part of the cerebral cortex that lies underneath the occipital bone.