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: a colorless crystalline growth vitamin C10H16N2O3S of the vitamin B complex found especially in yeast, liver, and egg yolk
Examples of biotin in a Sentence
Recent Examples on the Web
Its formula, packed with growth-stimulating biotin and peptides, worked hard to stimulate her scalp and boost density from the roots, which filled in her patchy spots and amped up her volume.
—Alyssa Brascia, People.com, 29 Oct. 2024
This hair gem is infused with a ton of nourishing ingredients such as biotin and rosemary that not only promote the growth of your hair but also leave a refreshing scent behind.
—Hyphensocial Contributors, Rolling Stone, 25 Oct. 2024
This glycerin-spiked formula defines and easily lifts brows, while biotin conditions fine hairs.
—Sarah Han, Allure, 5 Sep. 2024
Take a biotin supplement: Biotin, a type of B vitamin, has been linked to healthy hair and nails.
—Sherri Gordon, Health, 18 Oct. 2024
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Word History
Etymology
International Scientific Vocabulary, from Greek biotos life, sustenance; akin to Greek bios
First Known Use
1936, in the meaning defined above
Dictionary Entries Near biotin
Cite this Entry
“Biotin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biotin. Accessed 1 Dec. 2024.
Kids Definition
biotin
noun
bi·o·tin
ˈbī-ə-tən
: a growth vitamin of the vitamin B complex found especially in yeast, liver, and egg yolk
Medical Definition
biotin
noun
bi·o·tin
ˈbī-ət-ən
: a colorless crystalline growth vitamin C10H16N2O3S of the vitamin B complex found especially in yeast, liver, and egg yolk
called also vitamin H
More from Merriam-Webster on biotin
Britannica.com: Encyclopedia article about biotin
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