euphrasia
/juːˈfreɪzɪə/noun
1- a plant of the genus Euphrasia in the figwort family, especially eyebright小米草属植物。
1.1
- mass noun a preparation of eyebright used in herbal medicine and homeopathy, especially for treating eye problems小米草制剂。
词源
early 18th cent.: via medieval Latin from Greek, literally 'cheerfulness', from euphrainein 'gladden the mind'.