| Noun | 1. | parietal cortex - that part of the cerebral cortex in either hemisphere of the brain lying below the crown of the head cerebral cortex, cerebral mantle, cortex, pallium - the layer of unmyelinated neurons (the grey matter) forming the cortex of the cerebrum parietal gyrus - any of the convolutions of the outer surface of the parietal lobe of the cerebrum postcentral gyrus - the convolution of parietal lobe that is bounded in front by the central sulcus lobe - (anatomy) a somewhat rounded subdivision of a bodily organ or part; "ear lobe" |