biotin

B3I1O1T1I1N1
/ˈbaɪətɪn/

noun

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.

Similar
vitamin B7vitamin H
OriginGerman Biotin ← Ancient Greek βίοτος →
Less commonScrabble 8
Ask AI about this wordChatGPTClaudePerplexityGoogle AIGrok

Meanings

nounbiotin (countable and uncountable, plural biotins)

plural biotins

  1. countableuncountablebiochemistryA 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.

    Synonyms: vitamin B7, vitamin H

Synonyms & antonyms

nounA 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.

Similar
vitamin B7vitamin H

More synonyms by meaning

nouna B vitamin that aids in body growth

Similar
vitamin H
Broader
B-complex vitaminB complexvitamin B complex
Also see
vitamin b7vitamin h

Synonym sets from Open English WordNet, CC BY 4.0.

Origin

  1. Ancient Greekβίοτος“life”
  2. GermanBiotin
  3. Englishbiotin

Borrowed from German Biotin, from Ancient Greek βίοτος (bíotos, “life”) + the suffix -in.

More words from German, Ancient Greek

Full word history & related roots →

Translations

Catalan biotina
  • biotinasulfur-containing member of the vitamin B complex
Chinese Mandarin 生物素
  • 生物素 (shēngwùsù)sulfur-containing member of the vitamin B complex
Finnish biotiini
  • biotiinisulfur-containing member of the vitamin B complex
French biotine
  • biotinesulfur-containing member of the vitamin B complex
German Biotin
  • Biotinsulfur-containing member of the vitamin B complex
Italian biotina
  • biotinasulfur-containing member of the vitamin B complex
Japanese ビオチン
  • ビオチン (biochin)sulfur-containing member of the vitamin B complex
Korean 비오틴
  • 비오틴 (biotin)sulfur-containing member of the vitamin B complex
Polish biotyna
  • biotynasulfur-containing member of the vitamin B complex
Romanian biotină
  • biotinăsulfur-containing member of the vitamin B complex
Spanish biotina
  • biotinasulfur-containing member of the vitamin B complex
Swahili biotini
  • biotinisulfur-containing member of the vitamin B complex
Swedish biotin, vitamin B7
  • biotinsulfur-containing member of the vitamin B complex
  • vitamin B7sulfur-containing member of the vitamin B complex
Turkish biyotin
  • biyotinsulfur-containing member of the vitamin B complex
Cite this entry
APA

biotin. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/biotin

MLA

“biotin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/biotin. Accessed November 2, 2026.

Chicago

WatkinsX Dictionary, s.v. “biotin,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/biotin.

Source: biotin on Wiktionary, CC BY-SA 4.0.