tonka bean

noun

1. the fragrant, black almond-shaped seed of a tall tree belonging to the genus Dipteryx (or Coumarouna), of the legume family, especially D. odorata, of tropical South America, used in perfumes, as a source of coumarin, and as a substitute for vanilla.
2. the tree itself.

noun

1. a tall leguminous tree, Coumarouna odorata, of tropical America, having fragrant black almond-shaped seeds
2. the seeds of this tree, used in the manufacture of perfumes, snuff, etc