The flowers on the belladonna plant, also known as deadly nightshade.
belladonna definition by Webster's New World
- a poisonous European plant (Atropa belladonna) of the nightshade family, with purplish or reddish bell-shaped flowers and shiny black berries; deadly nightshade: it is a source of atropine
Origin: Modern Latin ; from Italian bella donna, literally , beautiful lady: a folk etymology (infl. by cosmetic use for dilating the eye) for Midieval Latin bladona, nightshade, probably ; from Gaulish
belladonna definition by American Heritage Dictionary
- A poisonous Eurasian perennial herb (Atropa belladonna) having usually solitary, nodding, purplish-brown, bell-shaped flowers and glossy black berries. Also called deadly nightshade.
- An alkaloidal extract or tincture derived from this plant and used in medicine.
Origin: Italian : bella, feminine of bello, beautiful (from Latin bellus; see deu-2 in Indo-European roots) + donna, lady; see donna .
belladonna - Medical Definition
- A poisonous Eurasian perennial herb having usually solitary, purplish-brown, bell-shaped flowers and glossy black berries. Also called deadly nightshade.
- An alkaloidal extract or tincture derived from this plant.
belladonna - Science Definition