tonka bean tree ton·ka·beant·ree uncommon noun 1. tall tropical South American tree having pulpy egg-shaped pods of fragrant black almond-shaped seeds used for flavoring Synonymstonka beantonka bean treeCoumarouna odorataDipteryx odorata Related words Broader terms bean tree Parts Coumarouna WordNet 2.1 (Princeton University). WordNet 2.1 Copyright Princeton University. All rights reserved.
