Standard Lemma guide

biotin

noun · 2 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

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  • /ˈbaɪətɪn/
  • CMU ARPABET: B AY1 AH0 T AH0 N Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.

1

noun

Meaning 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.

Definition source: English Wiktionary via Wiktextract

Usage: countable, uncountable

Topics: biochemistry, biology, chemistry, microbiology, natural-sciences, physical-sciences

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

noun

Meaning 2

a B vitamin that aids in body growth

Definition source: Princeton WordNet 3.0

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: vitamin H

Antonyms: none provided

Broader terms: B-complex vitamin, B complex, vitamin B complex, vitamin B, B vitamin, B

History

Etymology

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

Across languages

Translations

15 source translations are retained for this English entry.

  • Catalan: biotina — sulfur-containing member of the vitamin B complex
  • Chinese Mandarin: 生物素 (shēngwùsù) — sulfur-containing member of the vitamin B complex
  • Finnish: biotiini — sulfur-containing member of the vitamin B complex
  • French: biotine — sulfur-containing member of the vitamin B complex
  • German: Biotin — sulfur-containing member of the vitamin B complex
  • Italian: biotina — sulfur-containing member of the vitamin B complex
  • Japanese: ビオチン (biochin) — sulfur-containing member of the vitamin B complex
  • Korean: 비오틴 (biotin) — sulfur-containing member of the vitamin B complex
  • Polish: biotyna — sulfur-containing member of the vitamin B complex
  • Romanian: biotină — sulfur-containing member of the vitamin B complex
  • Spanish: biotina — sulfur-containing member of the vitamin B complex
  • Swahili: biotini — sulfur-containing member of the vitamin B complex
  • Swedish: biotin — sulfur-containing member of the vitamin B complex
  • Swedish: vitamin B7 — sulfur-containing member of the vitamin B complex
  • Turkish: biyotin — sulfur-containing member of the vitamin B complex