Night·shade n. 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.
Deadly nightshade. Same as Belladonna (a).
Enchanter's nightshade. See under Enchanter.
Stinking nightshade. See Henbane.
Three-leaved nightshade. See Trillium.
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Sol·a·nine n. Chem. A poisonous alkaloid glucoside extracted from the berries of common nightshade (Solanum nigrum), and of bittersweet, and from potato sprouts, as a white crystalline substance having an acrid, burning taste; -- called also solonia, and solanina.
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Solanum nigrum
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: black
nightshade, common nightshade, poisonberry, poison-berry]