Quercus cerris quer·cus·cer·ris uncommon noun 1. large deciduous tree of central and southern Europe and Asia Minor having oblong-lanceolate leaves with spiked lobes SynonymsEuropean turkey oakturkey oakQuercus cerris Related words Broader terms oak WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.