vitamin C

American  

noun

1. ascorbic acid.

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vitamin C British  

noun

1. another name for ascorbic acid

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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 .

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Etymology

Origin of vitamin C

First recorded in 1920–25

Example Sentences

In addition to vitamin C, guava also provides vitamin A, folate, dietary fiber, and small amounts of iron.

From Science Daily • May 27, 2026

The tribunal heard he intravenously administered vitamin C and garlic oil to both patients as a treatment for cancer and reused intravenous bags, exposing patients to risk of serious infection.

From BBC • Apr. 28, 2026

It was World War II, and the American military wanted vitamin C to keep its front-line boys in fighting trim.

From Slate • Apr. 20, 2026

Their vitamin C body oils smell great, and adding them to my bath makes me feel productive.

From Los Angeles Times • Apr. 3, 2026

It was empty except for some vitamin C tablets I’d got from the infirmary.

From "The Secret History" by Donna Tartt