estrone
/ˈɛˌstɹoʊn/noun
estrone is a noun meaning “A natural estrogenic hormone that is a ketone C₁₈H₂₂O₂ found in the body chiefly as a metabolite of and less potent than estradiol, that is also…” (English Wiktionary, September 2026). It is spelled E-S-T-R-O-N-E and has 2 syllables, and it appears about once in every 14 million words in written English (wordfreq, 2021 data). The plural of estrone is estrones.
What does estrone mean?
noun
- 1
USA natural estrogenic hormone that is a ketone C₁₈H₂₂O₂ found in the body chiefly as a metabolite of and less potent than estradiol, that is also secreted especially by the ovaries, and that is used to treat various conditions (such as ovarian failure and menopausal symptoms) relating to estrogen deficiency.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How do you pronounce estrone?
- US /ˈɛˌstɹoʊn/
Estrone has 2 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)-estrone.wav, Wikimedia Commons (author and licence on each file's page).
Forms of estrone
- estrones plural
- oestrone UK
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).
How common is estrone?
Estrone appears about once in every 14 million words in written English, the 113,022nd 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).
Where does estrone come from?
From estr- + -one.
Source: English Wiktionary, dump of September 2, 2026 (CC BY-SA 4.0), through kaikki.org (Wiktextract).