(n) Eurasian herb naturalized in America having white flowers and poisonous hairy foliage and bearing black berries that are sometimes poisonous but sometimes edible, Syn. Solanum nigrum, poison-berry, common nightshade, poisonberry
(n) perennial Eurasian herb with reddish bell-shaped flowers and shining black berries; extensively grown in United States; roots and leaves yield atropine, Syn. deadly nightshade, belladonna plant, Atropa belladonna
n. [ AS. nichtscadu. ] (Bot.) A common name of many species of the genus Solanum, given esp. to the Solanum nigrum, or black nightshade, a low, branching weed with small white flowers and black berries reputed to be poisonous. [ 1913 Webster ]
Deadly nightshade. Same as Belladonna (a). -- Enchanter's nightshade. See under Enchanter. -- Stinking nightshade. See Henbane. -- Three-leaved nightshade. See Trillium. [ 1913 Webster ]