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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:

Future studies could strengthen the evidence by measuring vitamin C levels repeatedly over time, considering additional lifestyle and dietary factors, and including participants from a wider range of ethnic and socioeconomic backgrounds.

From Science Daily Jul. 1, 2026

The results suggest that maintaining healthy vitamin C levels could potentially help support cognitive function and healthy brain aging.

From Science Daily Jul. 1, 2026

However, the researchers emphasize that this was an observational study, meaning it cannot determine whether vitamin C directly causes these differences in brain structure or function.

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

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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