Definition of monkshood
: any of a genus (Aconitum) of usually bluish flowered poisonous herbs of the buttercup family
especially
: a poisonous Eurasian herb (A. napellus) often cultivated for its showy terminal racemes of white or purplish flowers — compare wolfsbane
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Merriam-Webster unabridged
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Time Traveler for monkshood
The first known use of monkshood was in 1577
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