Tolu \To*lu"\, n. A fragrant balsam said to have been first brought from Santiago de Tolu, in New Granada. See {Balsam of Tolu}, under {Balsam}. [1913 Webster] {Tolu tree} (Bot.), a large tree ({Myroxylon toluiferum}), the wood of which is red in the center, and has an aromatic rose odor. It affords the balsam called tolu. [1913 Webster]