estriol
/ˈɛˌstɹaɪˌɔl/noun
estriol is spelled E-S-T-R-I-O-L: 7 letters and 3 syllables. It appears about once in every 23 million words in written English, the 146,811th most frequent word form (wordfreq, 2021 data). As a noun, estriol means “A relatively weak natural estrogenic hormone that is a glycol C₁₈H₂₄O₃ found in the body chiefly as a metabolite of estradiol, is the main estrogen…” (English Wiktionary, September 2026). The plural of estriol is estriols.
How many letters and syllables are in estriol?
| Letters | 7: E-S-T-R-I-O-L |
|---|---|
| Syllables | 3 (from its pronunciation) |
| In writing | about once in every 23 million words; the 146,811th most frequent word form |
| Wrong spellings searched | none measured in search |
Sources: letters and syllables from the English Wiktionary's hyphenation or pronunciation; written frequency: wordfreq 3.1 (a 2021 snapshot of Wikipedia, subtitles, news, books, web text and social media).
How common is estriol?
Estriol appears about once in every 23 million words in written English, the 146,811th 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 estriol?
- US /ˈɛˌstɹaɪˌɔl/
Estriol has 3 syllables (counted from the pronunciation).
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract). Recordings: LL-Q1860_(eng)-Naomi_Persephone_Amethyst_(NaomiAmethyst)-estriol.wav, Wikimedia Commons (author and licence on each file's page).
Forms of estriol
- estriols plural
- oestriol UK
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
What does estriol mean?
The meanings the English Wiktionary records, quoted as written there (source below).
noun
- 1
USA relatively weak natural estrogenic hormone that is a glycol C₁₈H₂₄O₃ found in the body chiefly as a metabolite of estradiol, is the main estrogen secreted by the placenta during pregnancy, and is the estrogen typically found in the urine of pregnant women.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
Where does estriol come from?
Blend of estratriene + triol.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).