hellebore

noun hel·le·bore \ ˈhe-lə-ˌbȯr \
Updated on: 10 Nov 2017

Definition of hellebore

1 : any of a genus (Helleborus) of poisonous Eurasian herbs of the buttercup family having showy flowers with petaloid sepals; also : the dried rhizome of a hellebore (such as H. niger) formerly used in medicine
2 : a poisonous herb (genus Veratrum) of the lily family; also : the dried rhizome of a hellebore (V. album or V. viride) that is used as an insecticide and contains toxic alkaloids that are cardiac and respiratory depressants

Recent Examples of hellebore from the Web

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Origin and Etymology of hellebore

Middle English elebre, from Anglo-French, from Latin elleborus, helleborus, from Greek helleboros


Medical Dictionary

hellebore

noun hel·le·bore \ ˈhel-ə-ˌbō(ə)r, -ˌbȯ(ə)r \

medical Definition of hellebore

1 a : any herb of the genus Helleborus
b : the dried roots and rhizome of any medicinal herb of the genus Helleborus (as black hellebore H. niger or green hellebore H. viridis) or a powder or extract of this used by the ancient Greeks and Romans in treating mental and other disorders
2 a : any of several poisonous herbs of the genus Veratrum
b : the dried rhizome and roots of either of two hellebores of the genus Veratrum (the false hellebore V. viride of America and V. album of Europe) or a powder or extract of this containing alkaloids (as protoveratrine) used as a cardiac and respiratory depressant and also as an insecticide called also veratrum, white hellebore

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