Pronunciation: (tô-lOO', tu-), [key]
1. Also called tolu' bal'sam, 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.
2. the tree itself.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.