Definition of estrone in English:

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Pronunciation: /ˈestrōn/
(British oestrone)


An estrogen similar to but less potent than estradiol.
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.

For editors and proofreaders

Syllabification: es·trone

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