souari nut soua·ri·nut uncommon noun 1. large South American evergreen tree trifoliate leaves and drupes with nutlike seeds used as food and a source of cooking oil Synonymssouarisouari nutsouari treeCaryocar nuciferum 2. a large nutlike seed of a South American tree Synonymssouari nut Related words Broader terms edible nuttree Parts souariCaryocar Part of souari nut WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.