Definitions for tonka beanˈtɒŋ kə
Random House Webster's College Dictionary
ton′ka bean`ˈtɒŋ kə(n.)
the fragrant black seed of a tropical American tree, Dipteryx odorata, or related species: used in perfumes, as a source of coumarin, and as a vanilla substitute.
the tree itself.
Origin of tonka bean:
1790–1800; prob. < Tupi tõka
tonka bean, coumara nut(noun)
fragrant black nutlike seeds of the tonka bean tree; used in perfumes and medicines and as a substitute for vanilla
tonka bean, tonka bean tree, Coumarouna odorata, Dipteryx odorata(noun)
tall tropical South American tree having pulpy egg-shaped pods of fragrant black almond-shaped seeds used for flavoring
The black wrinkled seed of Dipteryx odorata, a neotropical legume tree, used as a perfume and vanilla substitute.
the seed of a leguminous tree (Dipteryx odorata), native of Guiana. It has a peculiarly agreeable smell, and is employed in the scenting of snuff. Called also tonquin bean