angostura n 1: the bitter bark of a South American tree; used in medicines and liqueurs and bitters [syn: {angostura bark}, {angostura}]
Angostura \An`gos*tu"ra\, Angostura bark \An`gos*tu"ra bark"\([aum][ng]`g[o^]s*t[=oo]"r[.a] b[aum]rk`). [From Angostura, in Venezuela.] A bitter aromatic bark, obtained from a South American tree of the rue family ({Galipea cusparia}, or {Galipea officinalis}). It is used used as a tonic, in medicines, liqueurs and bitters. --U. S. Disp. [1913 Webster WordNet 1.5]