ˌäksēəˈkanˌthēn, -an(t)thə̇n noun
Etymology: International Scientific Vocabulary oxyacanth- (from New Latin oxyacantha — specific epithet of the hawthorn Crataegus oxyacantha — , from Greek oxyakantha sharp thorn, from oxy- oxy- (I) + akantha thorn) + -ine; probably originally formed as German oxyakanthin — more at acanth-
: a bitter crystalline alkaloid C 37 H 40 N 2 O 6 obtained from barberry root