barbatimao noun1 •A South American mimosa tree, Stryphnodendron adstringens (formerly Stryphnodendron barbatimao), which has an astringent, tannin-rich bark.These referred largely to the bark of the barbatimao. The most abundant source of tannin in the country is the mangrove. … Next in importance come angico, … and the barbatimao tree. — 1916 formsbarbatimaos
