Definition of hellebore noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˈhelɪbɔː(r)//
; NAmE NAmE//ˈhelɪbɔːr//
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a poisonous plant with divided leaves and large green, white or purple flowers Word OriginOld English (denoting various plants supposed to cure madness), from Old French ellebre, elebore or medieval Latin eleborus, via Latin from Greek helleboros.
See the Oxford Advanced American Dictionary entry: hellebore