occipital lobe oc·ci·pi·tallobe uncommon noun 1. that part of the cerebral cortex in either hemisphere of the brain lying in the back of the head Synonymsoccipital lobe Related words Broader terms lobe Parts cerebral cortex Part of calcarine sulcusoccipital gyrus WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
