estrone [es-trohn] Word Origin noun
- Biochemistry. an estrogenic hormone, C18H22O2, produced by the ovarian follicles and found during pregnancy in urine and placental tissue.
- Pharmacology. a commercial form of this compound, obtained from the urine of pregnant women or synthesized from ergosterol, used in the treatment of estrogen deficiency and certain menopausal and postmenopausal conditions.
- the usual US spelling of oestrone
estrone in Medicine estrone [ĕs′trōn′] n.
- A metabolite of estradiol, commonly found in urine, having considerably less biological activity than estradiol but similar properties and uses.theelin