Biotin
//ˈbaɪətɪn// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A sulfur-containing member of the vitamin B complex, 5-[(3aS,4S,6aR)-2-oxohexahydro-1H-thieno[3,4-d]imidazol-4-yl]pentanoic acid, found in liver, egg yolk, milk, and yeast, essential to the activity of multiple enzyme systems. countable, uncountable
- 2 a B vitamin that aids in body growth wordnet
Etymology
Borrowed from German Biotin, from Ancient Greek βίοτος (bíotos, “life”) + the suffix -in.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.