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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

But investigations found he had been accidentally poisoned with an overdose of vitamin D that had been prescribed for growing pains.

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

The study showed that the organic fruits and vegetables contained higher levels of vitamin C. They also had a wider range of natural chemicals called polyphenols.

From "The Omnivore's Dilemma" by Michael Pollan




Vocabulary lists containing vitamin