Noun: belladonna ,be-lu'dó-nu
- Perennial Eurasian herb with reddish bell-shaped flowers and shining black berries; extensively grown in United States; roots and leaves yield atropine
"Medieval women used belladonna to dilate their pupils"; "Belladonna plant was historically used in medicine despite its toxicity";
- belladonna plant, deadly nightshade, Atropa belladonna
- An alkaloidal extract or tincture of the poisonous belladonna plant that is used medicinally
"The pharmacist carefully measured the belladonna for the prescription"
Derived forms: belladonnas
Type of: atropin, atropine, herb, herbaceous plant
Part of: Atropa, genus Atropa
Encyclopedia: Belladonna