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vitamin C

American  
vitamin C British  

noun

  1. another name for ascorbic acid

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

vitamin C Scientific  
  1. A water-soluble vitamin important for healthy skin, teeth, bones, and blood vessels. It is found especially in citrus fruits, tomatoes, potatoes, and green leafy vegetables. A deficiency of vitamin C in the diet causes scurvy. Also called ascorbic acid. Chemical formula: C 6 H 8 O 6 .


Etymology

Origin of vitamin C

First recorded in 1920–25

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

While the findings do not prove that vitamin C protects the brain, they strengthen evidence that good nutrition could play a role in maintaining cognitive health later in life.

From Science Daily Jul. 1, 2026

"I was on high doses of vitamin C, vitamin D, turmeric, a special de-bloat supplement and I would regularly drink water with electrolytes in," Ginger explains.

From BBC Jun. 20, 2026

Potatoes provide important nutrients, including fiber, vitamin C, and magnesium.

From Science Daily Jun. 3, 2026

According to the researchers, guava contains up to four times more vitamin C per 100 grams than oranges.

From Science Daily May 27, 2026

My cousin, who keeps urging me to add a hydrating serum with hyaluronic acid and vitamin C to my skincare regime.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith

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