a plant, Atropa belladonna, having purple bell-shaped flowers and poisonous black glossy berries; deadly nightshade (noun)
an alkaloid extracted from this plant, sometimes used medicinally, containing atropine (noun)
Examples of word belladonna
She had read about some of them in her herbology book: a substance called belladonna, which women applied to their eyes to beautify the pupils and which could lead to blindness, and another one called arsenic, which women swallowed in order to improve their skin and which was fatal in large enough doses.
They call the belladonna Aaron's Beard in the country, you know; and it is true that the cattle, simple as they are, are never harmed by it; just because, though it is always in their path, they never stop and taste it.
Other presses such as belladonna, for example, can pretty much only be found if you show up at a reading in New York, or you order a book directly from the series organizers.
The susbstance used to dilate pupils is a relative of the "belladonna" beautiful lady plant so called because the pupil dilation it causes makes people appear to be more beautiful.
Botanists claim to recognize several species of the plant, and also to ally tobacco by a botanical consanguinity with other plants differing totally in appearance, properties and uses; connecting it with some containing powerful narcotic poisonous properties, such as belladonna, stramonium and hyoscyamus, and also with the innocent tomato and potato.