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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.

After accounting for factors such as age, sex and symptoms of depression, the researchers found that higher vitamin D levels were associated with lower levels of tau protein years later.

From Science Daily • Apr. 7, 2026

One limitation of the study is that vitamin D levels were measured only once rather than tracked over time.

From Science Daily • Apr. 7, 2026

Kiwis “I try to eat one a day. They’re an incredible source of vitamin C.”

From The Wall Street Journal • Apr. 6, 2026

Their vitamin C body oils smell great, and adding them to my bath makes me feel productive.

From Los Angeles Times • Apr. 3, 2026

We are, after all, a planet where the rain contains vitamin B12!

From "The Lives of a Cell" by Lewis Thomas