lupulin
/ˈljuːpjʊlɪn/noun
mass noun
- a bitter yellowish powder found on glandular hairs beneath the scales of the flowers of the female hop plant蛇麻素; 啤酒花苦味素。
词源
early 19th cent.: from the modern Latin use as an epithet of Latin lupulus (as in Humulus lupulus), a plant mentioned by Pliny and perhaps denoting 'wild hops', + -IN1.