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.
This two-in-one Dove cream pulls double duty as a moisturizing lotion and a serum that’s packed with niacinamide, vitamin C, pro-retintol, and shea butter to minimize the appearance of dark spots, even your complexion, smoothen texture, and brighten the skin. Alicia Geigel, Southern Living, 3 May 2026 Spaghetti squash is a good source of vitamin C and zinc. Carrie Madormo, Verywell Health, 1 May 2026 Hearing evidence indicated that Ali administered intravenous vitamin C and garlic oil, along with oxygenated water, sodium bicarbonate and ozone therapy, which an expert witness said were not supported by any clinical evidence as cancer treatments. Angelique Brenes, PEOPLE, 1 May 2026 As an antioxidant, vitamin C helps neutralize these hazards and protects cells from damage. Merve Ceylan, Health, 30 Apr. 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 May. 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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