vitamin C

noun

: a water-soluble vitamin C6H8O6 found in plants and especially in fruits and leafy vegetables or made synthetically and used in the prevention and treatment of scurvy and as an antioxidant for foods

called also ascorbic acid

Examples of vitamin C 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.
The rich blend of shea butter, murumuru butter, coconut oil, and vitamin C coats lips in lasting moisture overnight. Christa Joanna Lee, Allure, 23 June 2026 The finding does not mean that dietary vitamin C itself causes cardiovascular disease, the researchers noted. Melissa Rudy, FOXNews.com, 22 June 2026 The Cleveland Clinic says drinking lemon water in the morning boosts your vitamin C and antioxidant intake. Nicole Bennett, AJC.com, 19 June 2026 Niacinamide and vitamin E work to strengthen, vitamin C brightens, AHA exfoliates and smooths, and collagen peptides help reduce the appearance of fine lines while boosting elasticity. Claudia Fisher, Parents, 18 June 2026 See All Example Sentences for vitamin C

Word History

First Known Use

circa 1920, in the meaning defined above

Time Traveler
The first known use of vitamin C was circa 1920

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Cite this Entry

“Vitamin C.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitamin%20C. Accessed 25 Jun. 2026.

Kids Definition

vitamin C

noun
: a vitamin that is present especially in citrus fruits, tomatoes, and green vegetables and is needed by the body to prevent scurvy

called also ascorbic acid

Medical Definition

vitamin C

noun
: a water-soluble vitamin C6H8O6 found in plants and especially in fruits and leafy vegetables or made synthetically and used in the prevention and treatment of scurvy and as an antioxidant for foods

called also ascorbic acid

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