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.
There were some initial concerns that niacinamide could inactivate the benefits of vitamin C if both ingredients were applied to the skin at the same time. Caroline C. Boyle, USA Today, 27 Mar. 2025 The same serving covers over 100% of your vitamin C needs and over 40% of the DV for folate, both of which play important roles in the body. Jillian Kubala, Health, 25 Mar. 2025 For example, high amounts of vitamin C can increase the risk of kidney stones in some people, and high intakes of biotin can impair thyroid test results. Maggie Slepian, Glamour, 24 Mar. 2025 Most people can get enough vitamin C from their diet. Lana Barhum, Verywell Health, 20 Mar. 2025 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 2 Apr. 2025.

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

More from Merriam-Webster on vitamin C

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