tonka bean

== English == === Alternative forms === tonca bean, tonga bean, tonqua bean, tonquin bean === Etymology === Likely from Guyanese Creole English tonka, from a Tupian language, perhaps Kari'na tonka. === Noun === tonka bean (plural tonka beans) A black wrinkled seed of a neotropical legume tree of species Dipteryx odorata, used as a perfume and vanilla substitute due to its high coumarin content. ==== Translations ==== === References ===