Angostura™
noun /ˌæŋɡəˈstjʊərə/
/ˌæŋɡəˈstʊrə/
(also Angostura bitters
[uncountable] /ˌæŋɡəˌstjʊərə ˈbɪtəz/
/ˌæŋɡəˌstʊrə ˈbɪtərz/
)- 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） 词源late 18th cent.: from the place name Angostura, the former name (until 1846) for Ciudad Bolívar, a city in SE Venezuela.