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Definitions

vitamin

[vahy-tuh-min, vit-uh-min] / ˈvaɪ tə mɪn, ˈvɪt ə mɪn /
NOUN
nutrient
Synonyms


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.

Once absorbed, the vitamin is converted into molecules that help protect cells from oxidative damage and support other important biological functions.

From Science Daily • May 15, 2026

The team believes this process could eventually be used as a cancer treatment by shutting down vitamin B2 metabolism in tumors and triggering cancer cell death.

From Science Daily • May 15, 2026

Their findings show that vitamin B2 metabolism can also shield cancer cells from destruction.

From Science Daily • May 15, 2026

Two weeks ago, at a House subcommittee hearing, Rep. Kim Schrier, D-Wash., pressed Health and Human Services Secretary Robert F. Kennedy Jr. to reassure parents that the vitamin K shot is safe.

From Salon • May 7, 2026

If the tapeworm attaches to the right place in the gut, it can leech vitamin B12 from the victim, instigating a lethal form of anemia.

From "1491" by Charles C. Mann




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