biotin
/ˈbaɪətɪn/noun
biotin is spelled B-I-O-T-I-N: 6 letters and 3 syllables. It appears about once in every 3 million words in written English, the 51,129th most frequent word form (wordfreq, 2021 data). As a noun, biotin means “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…” (English Wiktionary, September 2026). The plural of biotin is biotins.
How many letters and syllables are in biotin?
| Letters | 6: B-I-O-T-I-N |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | about once in every 3 million words; the 51,129th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation and the CMU Pronouncing Dictionary; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is biotin?
Biotin appears about once in every 3 million words in written English, the 51,129th most frequent word form in the list.
Source: written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How do you pronounce biotin?
- /ˈbaɪətɪn/
Biotin has 3 syllables (counted from its American pronunciation in the CMU Pronouncing Dictionary).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Forms of biotin
- biotins plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does biotin mean?
The meanings the English Wiktionary records, quoted as written there (source below).
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.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Biotin in Spanish, French, German and Portuguese
In the sense sulfur-containing member of the vitamin B complex:
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Translations are Wiktionary's, by sense; a linked word has its own PlainSpell page.
Where does biotin come from?
Borrowed from German Biotin, from Ancient Greek βίοτος (bíotos, “life”) + the suffix -in.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).