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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.

Biotin, also known as vitamin B7, helps the body produce proteins such as keratin, which supports hair, skin and nails.

From Science Daily • May 7, 2026

All newborns lack vitamin K. No matter how much vitamin K a mother consumes, it doesn’t sufficiently pass through the placenta, and breast milk contains only small amounts.

From Salon • May 7, 2026

One option that has gained popularity is biotin, a vitamin commonly promoted for stronger hair and nails.

From Science Daily • May 7, 2026

“I’m picking vitamin K every day,” Morad said.

From Salon • May 7, 2026

“Without them, you wouldn’t have your bottled vitamin water, your eye shadows, the packaging on your favorite perfume, your colored contact lenses, clothes, hair color, and nail polish.”

From "Beauty Queens" by Libba Bray




Vocabulary lists containing vitamin