Caryocar ca·ryo·car uncommon noun 1. type genus of the Caryocaraceae; South American trees yielding strong fine-grained wood and edible nuts Synonymsgenus Caryocar Related words Word family CaryocaraceaeCaryocar nuciferum Broader terms dilleniid dicot genus Parts Caryocaraceae Part of souari WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.