| 1. | Biochemistry. an estrogenic hormone, C18H24O2, produced by the maturing Graafian follicle, that causes proliferation and thickening of the tissues and blood vessels of the endometrium. |
| 2. | Pharmacology. a commercial form of this compound, obtained from the urine of pregnant humans and mares or synthesized, used in the treatment of estrogen deficiency and certain menopausal and postmenopausal conditions. |
estradiol es·tra·di·ol (ěs'trə-dī'ôl', -ōl')
n.
The most potent naturally occurring estrogen.