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.
Cassava root is particularly high in vitamin C, an immune-boosting antioxidant. Caroline C. Boyle, USA Today, 26 June 2025 Key nutrients Postnatal vitamins should include several key nutrients, including vitamin C, vitamin D, B-complex vitamins, and docosahexaenoic acid (DHA). Bestreviews, Mercury News, 25 June 2025 This fruit is also rich in vitamin C, with a one-cup serving covering over 400% of the DV.24 Papayas are large tropical fruits with bright orange, sweet-tasting flesh. Jillian Kubala, Health, 24 June 2025 Medik8’s hero product is its Crystal Retinal serum, and the brand is also known for its proprietary CSA Philosophy, a system using vitamin C and sunscreen in the day, followed by vitamin A by night. Jennifer Weil, Footwear News, 9 June 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

Browse Nearby Words

Cite this Entry

“Vitamin C.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitamin%20C. Accessed 6 Jul. 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

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!