cortical region cor·ti·cal·region uncommon noun 1. any of various regions of the cerebral cortex Synonymscortical areacortical region Related words Broader terms area Narrower terms association areaauditory areaBrodmann's areafrontal arealanguage areamotor areasensorimotor areavisual area Parts cerebral cortex WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.