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.
Rich in Antioxidants Kombucha contains antioxidants, including vitamin C, selenium, and carotenoids, that can help prevent or delay cell damage. Mikayla Morell, Health, 13 Apr. 2026 According to Sawyer, the key antioxidant compounds in blueberries include anthocyanins, vitamin C, and vitamin E. Kirsten Nunez, Martha Stewart, 11 Apr. 2026 For example, the scarring on my chin calls for brightening vitamin C serums, while my raccoon-like under-eyes require products that tackle dark circles. Isabel Bekele, InStyle, 10 Apr. 2026 Choose red peppers, which pack significantly more vitamin C than the green kind, to maximize your intake. Caroline Tien, SELF, 9 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 18 Apr. 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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