1. A poisonous Eurasian perennial herb (Atropa belladonna) having usually solitary, nodding, purplish-brown, bell-shaped flowers and glossy black berries. Also called deadly nightshade. 2. An alkaloidal extract or tincture derived from this plant and used in medicine.
ETYMOLOGY:
Italian : bella, feminine of bello, beautiful (from Latin bellus; see deu-2 in Appendix I) + donna, lady; see Donna.
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