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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.

"The product was estimated to have seven times the amount of vitamin D that he should have had," he said.

From BBC • Apr. 16, 2026

He was given supplements containing vitamin D3 – also known as colecalciferol – to raise the levels in his blood.

From BBC • Apr. 16, 2026

The mutation appears to enhance the activity of enzymes that convert vitamin A into its active forms.

From Science Daily • Apr. 15, 2026

Further analysis revealed that mice with the mutation produced increased levels of ATDR, a metabolite derived from vitamin A, in their brains.

From Science Daily • Apr. 15, 2026

My father took a vitamin pill every morning now with his orange juice, but they didn’t seem to be doing much good.

From "The Chosen" by Chaim Potok




Vocabulary lists containing vitamin