\An`gos*tu"ra bark`\ ([aum][ng]`g[o^]s*t[=oo]"r[.a] b[aum]rk`). [From Angostura, in Venezuela.] An aromatic bark used as a tonic, obtained from a South American of the rue family ({Galipea cusparia, or officinalis}). --U. S. Disp.