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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.

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

From The Wall Street Journal • Apr. 6, 2026

For example, some results suggested that vitamin D might help reduce depressive symptoms in teens, but the findings were not consistent.

From Science Daily • Mar. 29, 2026

Taking too much vitamin A can cause health problems, including birth defects if taken while pregnant.

From Salon • Mar. 19, 2026

Common ingredients include hyaluronic acid to help with hydration, peptides for skin plumping, retinals for fine lines and vitamin C for brightening the under-eye area.

From Los Angeles Times • Mar. 18, 2026

My cousin, who keeps urging me to add a hydrating serum with hyaluronic acid and vitamin C to my skincare regime.

From "Legendary Frybread Drive-In" by Cynthia Leitich Smith