Open English Wordnet
Nouns
(n)belladonna, belladonna plant, deadly nightshade, Atropa belladonnaperennial Eurasian herb with reddish bell-shaped flowers and shining black berries; extensively grown in United States; roots and leaves yield atropine
(n)belladonnaan alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally