Angostura™
noun [uncountable]a bitter liquid, made with the bark of a tropical tree, that is used to give a particular taste to some alcoholic drinks 安格斯托拉树树皮汁,苦精(用以调酒) Word Originlate 18th cent.: from the place name Angostura, the former name (until 1846) for Ciudad Bolívar, a city in SE Venezuela.