a fragrant gum obtained from the bark of a leguminous South American tree (Myroxylon balsamum), used in cough mixtures, flavorings, perfumes, etc.
also tolu balsam
Origin of toluSpanish tolú, after Tolú, Caribbean seaport in Colombia
or To·lu balsam
Balsam of Tolu.
Origin of toluSpanish tolú, after Tolú, a seaport of northwest Colombia.