nightshade
noun
night·shade ˈnīt-ˌshād 
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
: belladonna sense 1
Example Sentences
Recent Examples on the Web Tomatoes, members of the nightshade family, contain a toxin called solanine, which exists in higher concentrations in unripe tomatoes, as well as the stems and leaves. 
Jacob Livesay, USA TODAY, 3 Aug. 2022 Despite being a fruit, the tomato plant is part of the nightshade family of vegetables, says the AKC. Evan Hecht, USA TODAY, 17 July 2022 Jimsonweed, a Mexican nightshade, blooms wide along the sandy shoulder of the highway. Claire Vaye Watkins, Outside Online, 15 May 2017 For example, this chicken soup is suitable for Whole30 as well as being Keto-friendly, nut-free and nightshade-free. Washington Post, 1 Feb. 2022 But he's also taken an unconventional stance against nightshade vegetables such as potatoes, peppers, eggplant and tomatoes. NBC News, 30 Jan. 2022 Next year, replant those beds with melons, pumpkins, basil, sweet potatoes (Ipomea), okra, onions and other veggies that are not susceptible to root knot nematode or any other nightshade pathogens. Nan Sterman, San Diego Union-Tribune, 4 Sep. 2021 According to a small, national survey of psoriasis patients' dietary habits described in the journal Dermatology and Therapy, more than half of respondents reported skin improvements after reducing their intake of nightshade veggies. Sarah Lemire, Health.com, 12 Oct. 2021 Even so, they were still regarded with skepticism and fear because botanists recognized them as relatives of the poisonous nightshade, belladonna. Washington Post, 4 Aug. 2021 See More
Jacob Livesay, USA TODAY, 3 Aug. 2022 Despite being a fruit, the tomato plant is part of the nightshade family of vegetables, says the AKC. Evan Hecht, USA TODAY, 17 July 2022 Jimsonweed, a Mexican nightshade, blooms wide along the sandy shoulder of the highway. Claire Vaye Watkins, Outside Online, 15 May 2017 For example, this chicken soup is suitable for Whole30 as well as being Keto-friendly, nut-free and nightshade-free. Washington Post, 1 Feb. 2022 But he's also taken an unconventional stance against nightshade vegetables such as potatoes, peppers, eggplant and tomatoes. NBC News, 30 Jan. 2022 Next year, replant those beds with melons, pumpkins, basil, sweet potatoes (Ipomea), okra, onions and other veggies that are not susceptible to root knot nematode or any other nightshade pathogens. Nan Sterman, San Diego Union-Tribune, 4 Sep. 2021 According to a small, national survey of psoriasis patients' dietary habits described in the journal Dermatology and Therapy, more than half of respondents reported skin improvements after reducing their intake of nightshade veggies. Sarah Lemire, Health.com, 12 Oct. 2021 Even so, they were still regarded with skepticism and fear because botanists recognized them as relatives of the poisonous nightshade, belladonna. Washington Post, 4 Aug. 2021 See More Word History
First Known Use
before the 12th century, in the meaning defined at sense 1
Phrases Containing nightshade
Medical Definition
nightshade
noun
night·shade ˈnīt-ˌshād
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
: belladonna sense 1
- black rust
- black sage
- black salamander
- black sally
- black salmon
- black salsify
- black salt
- black salts
- black saltwort
- black sampson
- black sanctus
- black sand
- black sanicle
- black sapote
- black sassafras
- black scab
- black scabbard fish
- black scabbardfish
- black scale
- black scoter
- black scour
- black scour worm
- black scours
- black scrub oak
- black scurf