any scrophulariaceous annual plant of the genus Euphrasia, esp E. nemorosa, having small white-and-purple two-lipped flowers: formerly used in the treatment of eye disorders
Also called: euphrasy
eyebright in American English
(ˈaɪˌbraɪt)
noun
any of a genus (Euphrasia) of plants of the figwort family, esp. a small plant (E. americana) of NE U.S. having pale lavender flowers in leafy clusters: formerly used in treating eye disorders