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Definition of nightshade

nightshade

/ˈnaɪt.ʃeɪd/
night · shade

Plural:nightshades
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nightshade Lexical Profile

nightshade Game Scores & Validity

• noun

1

Any of various plants belonging to the family Solanaceae, a diverse botanical group that encompasses highly toxic species as well as widely cultivated agricultural crops including tomatoes, potatoes, and eggplants.

Example

"Many people are surprised to learn that ordinary garden tomatoes and bell peppers are classified as nightshades."


2

Specifically, a poisonous plant of the genus Solanum or Atropa, such as deadly nightshade (Atropa belladonna) or woody nightshade, renowned for their toxic alkaloids.

Example

"In ancient and medieval folklore, deadly nightshade was frequently associated with witchcraft, potions, and potent poisons."

Synonyms
View all synonyms for nightshade

Word Nuance & Usage

While often strongly associated with toxic plants like belladonna, the term also broadly refers to a botanical family that includes common staple food crops such as tomatoes, potatoes, and peppers.

Word Origin & Etymology

From Old English 'nihtscada', a compound of 'niht' (night) and 'scada' (shade). The exact motivation for the name is debated, but it likely references the dark berries of some species, their historical association with darkness and witchcraft, or their toxic, sleep-inducing properties.

Cite this Entry


Wordmom. (2026). Definition of Nightshade. In Wordmom Dictionary. Retrieved Oct 12, 2026, from https://wordmom.com/dictionary/nightshade
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