Definition of estrone in English:


Syllabification: es·trone
Pronunciation: /ˈestrōn
(British oestrone)


  • An estrogen similar to but less potent than estradiol.
    More example sentences
    • Natural estrogen can also easily be divided into the three types of estrogen: estradiol, estrone, and estriol.
    • There were increases in blood levels of the estrogens, estradiol and estrone, and a reduction of the protective HDL cholesterol.
    • I assume that you're taking an oral dose of estriol or some combination of estriol, estrone, and estradiol.


1930s: from estrane (parent molecule of most estrogens) + -one.

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