calcarine fissure, calcarine sulcus - a sulcus in the mesial surface of the occipital lobe of the cerebrum

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

occipital gyrus - any of the convolutions of the outer surface of the occipital lobe of the cerebrum

lobe - (anatomy) a somewhat rounded subdivision of a bodily organ or part; "ear lobe"