nightshade

noun

night·​shade ˈnīt-ˌshād How to pronounce nightshade (audio)
1
: any of a genus (Solanum of the family Solanaceae, the nightshade family) of herbs, shrubs, and trees having alternate leaves, cymose flowers, and fruits that are berries and including some poisonous weeds, various ornamentals, and important crop plants (such as the potato and eggplant)
2

Examples of nightshade in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Avoid planting potatoes in the same location where potatoes and other members of the nightshade family (tomatoes, eggplants, peppers) were grown for the past three years. Sheryl Geerts, Better Homes & Gardens, 6 Feb. 2026 Take the next set of steps up past thick bunches of black sage and chaparral nightshade. Jaclyn Cosgrove, Los Angeles Times, 5 Feb. 2026 Peppers Peppers are another nightshade family member that can attract the same pests and diseases as tomatoes. Gemma Johnstone, The Spruce, 4 Feb. 2026 Sweet potatoes are part of the morning glory family, while white potatoes are part of the nightshade family. Kirsten Nunez, Martha Stewart, 4 Feb. 2026 See All Example Sentences for nightshade

Word History

First Known Use

before the 12th century, in the meaning defined at sense 1

Time Traveler
The first known use of nightshade was before the 12th century

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Cite this Entry

“Nightshade.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nightshade. Accessed 14 Feb. 2026.

Kids Definition

nightshade

noun
night·​shade ˈnīt-ˌshād How to pronounce nightshade (audio)
: any of a family of herbs, shrubs, and trees having clusters of usually white, yellow, or purple flowers, and fruits that are berries and including many poisonous forms (as belladonna) and important food plants (as the potato, tomato, and eggplant)

Medical Definition

nightshade

noun
night·​shade ˈnīt-ˌshād How to pronounce nightshade (audio)
1
: any plant of the genus Solanum (family Solanaceae, the nightshade family) which includes some poisonous weeds, various ornamental garden plants, and important crop plants (as the potato and eggplant)
2

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