Sebesten \Se*bes"ten\, n. [Ar. sebest[=a]n the tree: cf. Sp. sebesten.] (Bot.) The mucilaginous drupaceous fruit of two East Indian trees ({Cordia Myxa}, and {C. latifolia}), sometimes used medicinally in pectoral diseases. Note: In the West Indies the name is given to the similar fruit of {Cordia Sebestana}.