central sulcus cent·ral·sul·cus uncommon noun 1. a brain fissure extending upward on the lateral surface of both hemispheres; separates the frontal and parietal lobes Synonymsfissure of RolandoRolando's fissurecentral sulcussulcus centralis Related words Broader terms sulcus Parts cerebrum WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
