vitamin

noun

vi·​ta·​min ˈvī-tə-mən 

British usually

ˈvi- 

: any of various organic substances that are essential in minute quantities to the nutrition of most animals and some plants, act especially as coenzymes and precursors of coenzymes in the regulation of metabolic processes but do not provide energy or serve as building units, and are present in natural foodstuffs or sometimes produced within the body

Examples of vitamin in a Sentence

This cereal contains essential vitamins and minerals.

Did you remember to take your vitamin?

Recent Examples on the Web

And a depleted supply of the vitamin can be bad news. —Fiona Embleton, Glamour, 19 Dec. 2024

Guernsey milk is high in fat and protein, Jen explained, and its unique color comes from Guernsey cows' inability to absorb beta carotene, the same vitamin that makes carrots orange. —Claire Reid, Journal Sentinel, 18 Dec. 2024

Through a blend of camellia alba, blue ginger, hyaluronic acid, and vitamins C and E, this antioxidant-rich mist delivers not only a refreshingly cool sensation, but ensures your skin is protected and quenched. —Kiana Murden, Vogue, 17 Dec. 2024

Like pill vitamins, the nutrients in gummy vitamins will vary based on the brand and intended purpose of the vitamin. —Lana Barhum, Verywell Health, 16 Dec. 2024

Word History

Etymology

alteration of vitamine, from Latin vita life + English amine

First Known Use

circa 1912, in the meaning defined above

Phrases Containing vitamin

• B vitamin
• vitamin A
• vitamin B6
• vitamin B complex
• vitamin C
• vitamin D3
• vitamin E
• vitamin H
• vitamin K3

Kids Definition

vitamin

noun

vi·​ta·​min ˈvīt-ə-mən 

: any of various substances that are necessary in very small amounts to the nutrition of most animals and some plants, that are important to the control of growth and development by activating and assisting in the function of enzymes, and that are present naturally in many foods or in some cases are produced within the body

Medical Definition

vitamin

noun

vi·​ta·​min ˈvīt-ə-mən, British also ˈvit- 

: any of various organic substances that are essential in minute quantities to the nutrition of most animals and some plants, act especially as coenzymes and precursors of coenzymes in the regulation of metabolic processes but do not provide energy or serve as building units, and are present in natural foodstuffs or are sometimes produced within the body