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
Most refined carbs aren't a good source of important nutrients like fiber, protein, vitamins, and minerals.
—
Jillian Kubala, Health, 18 Jan. 2025
Residents of the famously health-minded city are increasingly turning to vitamins, supplements and lifestyle modalities to help contend with the wildfire pollution.
—Jessica Ourisman, Forbes, 18 Jan. 2025
These include the following: Fruits and vegetables: Fruits and vegetables contain essential nutrients that are good for your gallbladder, like fiber, vitamins, minerals, and antioxidants.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 16 Jan. 2025
People use CareCredit to purchase vitamins, beds, hearing aids, and fitness equipment, among other products, the company says.
—Alana Semuels, TIME, 14 Jan. 2025
See all Example Sentences for vitamin 
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Jillian Kubala, Health, 18 Jan. 2025
Residents of the famously health-minded city are increasingly turning to vitamins, supplements and lifestyle modalities to help contend with the wildfire pollution.
—Jessica Ourisman, Forbes, 18 Jan. 2025
These include the following: Fruits and vegetables: Fruits and vegetables contain essential nutrients that are good for your gallbladder, like fiber, vitamins, minerals, and antioxidants.
—Brittany Lubeck, Ms, Rdn, Verywell Health, 16 Jan. 2025
People use CareCredit to purchase vitamins, beds, hearing aids, and fitness equipment, among other products, the company says.
—Alana Semuels, TIME, 14 Jan. 2025
See all Example Sentences for vitamin
Dictionary Entries Near vitamin
Cite this Entry
“Vitamin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/vitamin. Accessed 24 Jan. 2025.
Copy CitationKids 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
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