Noun
- 1. belladonna, belladonna plant, deadly nightshade, Atropa belladonna, herb, herbaceous plant
- usage: perennial Eurasian herb with reddish bell-shaped flowers and shining black berries; extensively grown in United States; roots and leaves yield atropine
- 2. belladonna, atropine
- usage: an alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally
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