: 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
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The thickening shampoos and conditioners are formulated with argan oil, biotin, collagen, keratin and saw palmetto. Bestreviews, Chicago Tribune, 28 Aug. 2026 Glycerin and hyaluronic acid draw in moisture to tame frizz, while pea peptide and biotin further condition and smooth strands. Christa Joanna Lee, Allure, 28 Aug. 2026 Thanks to a blend of peptides, biotin, green tea extract, amino acids, and antioxidants, expect strengthened, conditioned brows over time. Iman Balagam, Vogue, 27 Aug. 2026 Avoid excessive buildup and use products with growth actives like biotin. Rebecca Norris, InStyle, 16 Aug. 2026 See All Example Sentences for biotin

Word History

Etymology

International Scientific Vocabulary, from Greek biotos life, sustenance; akin to Greek bios

First Known Use

1936, in the meaning defined above

Time Traveler
The first known use of biotin was in 1936

Browse Nearby Words

Cite this Entry

“Biotin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/biotin. Accessed 1 Sep. 2026.

Kids Definition

: a growth vitamin of the vitamin B complex found especially in yeast, liver, and egg yolk

Medical Definition

: a colorless crystalline growth vitamin C10H16N2O3S of the vitamin B complex found especially in yeast, liver, and egg yolk

called also vitamin H

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