Angostura /(äṉ`gŏs*to͡o"rȧ bärk`)/

An·gos·tu·ra

Angostura
  1. 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.