the most powerful female hormone that occurs naturally; synthesized and used to treat estrogen deficiency and breast cancer
"The doctor prescribed estradiol to help manage my severe menopausal symptoms after confirming a significant estrogen deficiency."
A natural estrogenic hormone that is a phenolic alcohol estra-1,3,5-triene-3,17-diol (C₁₈H₂₄O₂) secreted chiefly by the ovaries of all vertebrates, that is a major and the most potent of the naturally occurring estrogens; the semisynthetic esterified compound is used medicinally to treat estrogen deficiency and breast cancer.
"The doctor prescribed a high dose of estradiol supplements to help restore my hormonal balance after menopause."