tretinoin
/tɹəˈtɪn.oʊ.ɪn/noun
tretinoin is spelled T-R-E-T-I-N-O-I-N: 9 letters and 3 syllables. It appears about once in every 8 million words in written English, the 82,325th most frequent word form (wordfreq, 2021 data). As a noun, tretinoin means “The all-trans isomer of retinoic acid that is applied to the skin to treat severe acne and reduce facial wrinkles, roughness, and pigmented spots…” (English Wiktionary, September 2026). The plural of tretinoin is tretinoins.
How many letters and syllables are in tretinoin?
| Letters | 9: T-R-E-T-I-N-O-I-N |
|---|---|
| Syllables | 3 (from its American pronunciation) |
| In writing | about once in every 8 million words; the 82,325th 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 tretinoin?
Tretinoin appears about once in every 8 million words in written English, the 82,325th 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 tretinoin?
- UK /tɹəˈtɪn.əʊ.ɪn/
- US /tɹəˈtɪn.oʊ.ɪn/
Tretinoin 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 tretinoin
- tretinoins plural
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does tretinoin mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
The all-trans isomer of retinoic acid that is applied to the skin to treat severe acne and reduce facial wrinkles, roughness, and pigmented spots, and taken orally as a chemotherapy drug for acute promyelocytic leukemia.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you abbreviate tretinoin?
Wiktionary records one abbreviation of tretinoin: tret.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does tretinoin come from?
From tr(ans)- + retino(ic acid) + -in.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).