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Definition of Deadly nightshade
1. Noun. Perennial Eurasian herb with reddish bell-shaped flowers and shining black berries; extensively grown in United States; roots and leaves yield atropine.
Generic synonyms: Herb, Herbaceous Plant
Group relationships: Atropa, Genus Atropa
2. Noun. Poisonous perennial Old World vine having violet flowers and oval coral-red berries; widespread weed in North America.
Group relationships: Genus Solanum, Solanum
Generic synonyms: Nightshade
Definition of Deadly nightshade
1. Noun. The plant ''Atropa belladonna'', a perennial shrub of the nightshade family that contains high concentrations of the alkaloid atropine which can be deadly if taken in excess. ¹
¹ Source: wiktionary.com
Medical Definition of Deadly nightshade
1.