brain cell - a nerve cell in the brain

cerebral cortex, cerebral mantle, cortex, pallium - the layer of unmyelinated neurons (the gray matter) forming the cortex of the cerebrum

medulla spinalis, spinal cord - a major part of the central nervous system which conducts sensory and motor nerve impulses to and from the brain; a long tube-like structure extending from the base of the brain through the vertebral canal to the upper lumbar region