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.
Experts generally recommend consulting a healthcare provider before starting any dietary supplement—vitamin C included. Christina Manian, Health, 23 July 2026 Their vitamin C can help your body absorb non-heme iron more efficiently. Olivia McIntosh, Martha Stewart, 22 July 2026 Peaches are loaded with vitamin C, beta-carotene, and polyphenols, which can help fight free radicals in your body. Julie Marks, Verywell Health, 22 July 2026 Grapefruit juice is a notable source of vitamin C and also provides potassium. Lauren Jarvis-Gibson july 21, Charlotte Observer, 21 July 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 24 Jul. 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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