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.
When the skin barrier is healthy, treatment ingredients such as retinoids, vitamin C, and peptides can work more effectively without triggering unnecessary inflammation or dryness. Iman Balagam, Vogue, 3 Mar. 2026 Adding vitamin C-rich produce to meals and snacks is simple and can enhance both nutrient intake and flavor variety. Trista Chan, Health, 3 Mar. 2026 Olay Super Serum Body Wash for Normal Skin Olay Super Serum Body Wash is formulated with ingredients such as vitamin E, collagen peptide, vitamin C, niacinamide, and BHA, which combine to create a powerful formula that hydrates, firms, brightens, evens, and smooths the skin. Claire West, Parents, 27 Feb. 2026 On a recent Sunday afternoon at a South Austin coffee shop, Hinojosa downed a bright orange vitamin C drink, her only sustenance after a quick Mexican breakfast between stops hours earlier. Karen Brooks Harper austin Bureau, Dallas Morning News, 26 Feb. 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 7 Mar. 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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