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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.

A month before Roo began his course of vitamin D3 drops, Kayan Khan from Sheffield had also been prescribed the same brand of supplements.

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

For decades, scientists believed that vitamin B1, also known as thiamine, might briefly form a carbene-like structure inside cells to help drive essential biochemical reactions.

From Science Daily • Apr. 11, 2026

The store always smelled like the inside of a vitamin bottle.

From "Scream for Ice Cream: Nancy Drew and the Clue Crew, #2" by Carolyn Keene




Vocabulary lists containing vitamin