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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.

But a leading expert has told BBC News the medicines watchdog should look at changing the way vitamin supplements are regulated.

From BBC • Apr. 16, 2026

Blood tests showed him to be fit and healthy apart from a slightly lower than normal level of vitamin D.

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

Polyface grass-fed chickens produce eggs with more omega-3s, beta- carotene, and vitamin E. And they do it in a way that’s better for the environment.

From "The Omnivore's Dilemma" by Michael Pollan




Vocabulary lists containing vitamin