estrone

noun

es·​trone ˈe-ˌstrōn 

: a natural estrogenic hormone that is a ketone C₁₈H₂₂O₂ found in the body chiefly as a metabolite of 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

Examples of estrone in a Sentence

Recent Examples on the Web

Meanwhile, the form of estrogen known as estrone actually goes up. —Nicole Villalpando, Austin American Statesman, 2 July 2025

Estrogen's Impact on Cancer: Estradiol is the most potent form of estrogen and can be converted to estrone, a weaker estrogen. —Elizabeth Barnes, Verywell Health, 24 Sep. 2024

Estrogen is a group of hormones (there are three types: estradiol, estriol, and estrone) that helps regulate the menstrual cycle and has an impact on various parts of the body, including the urinary tract, bones, breasts, skin, heart and blood vessels, pelvic muscles, and the brain. —Fiorella Valdesolo, Vogue, 14 June 2023

Respeggt found a way around that: punch a 0.3-millimeter-wide hole in a shell, suck up a drop of embryonic urine, and test for estrone sulfate, a hormone only female chicks produce. —Popular Science, 3 Dec. 2019

Word History

Etymology

estrane

First Known Use

1933, in the meaning defined above

Rhymes for estrone

• boney
• boni
• bony
• coney
• crony
• monie
• mony
• phoney
• phony
• stoney
• stony
• toney

Medical Definition

estrone

noun

es·​trone ˈes-ˌtrōn 

variants or chiefly British oestrone

ˈē-ˌstrōn 

: a natural estrogenic hormone that is a ketone C₁₈H₂₂O₂ found in the body chiefly as a metabolite of estradiol, is also secreted especially by the ovaries, and is used to treat various conditions (as ovarian failure and menopausal symptoms) relating to estrogen deficiency see theelin