|1.||either of two alkaloid drugs, atropine or hyoscyamine, obtained from the leaves and roots of the deadly nightshade|
|2.||another name for deadly nightshade|
|[C16: from Italian, literally: beautiful lady; supposed to refer to its use by women as a cosmetic]|
|a calculus or concretion found in the stomach or intestines of certain animals, esp. ruminants, formerly reputed to be an effective remedy for poison.|
|a gadget; dingus; thingumbob.|
belladonna bel·la·don·na (běl'ə-dŏn'ə)
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 (běl'ə-dŏn'ə) Pronunciation Key
A preparation of the dried leaves or roots of deadly nightshade or related plants in the genus Belladonna, once used as a medicine. Belladonna contains several alkaloids that affect the nervous system by blocking the effects of acetylcholine.