Also called tolu balsam, balsam of tolu, tolu resin. a fragrant, yellowish-brown balsam or resin obtained from a South American leguminous tree, Myroxylon balsamum, and used in medicine as a stomachic and expectorant, and in perfumery.
the tree itself.
Origin of tolu
1665-75; after Tolú (now Santiago de Tolú) in Colombia, where balsam is obtained