estradiol - the most powerful female hormone that occurs naturally; synthesized and used to treat estrogen deficiency and breast cancerLoestrin - trade name for an oral contraceptive containing estradiol and norethindrone Lo/Ovral - trade name for an oral contraceptive containing estradiol and norgestrel Modicon - trade name for an oral contraceptive containing estradiol and norethindrone Norlestrin - trade name for an oral contraceptive containing estradiol and norethindrone Ovocon - trade name for an oral contraceptive containing estradiol and norethindrone Ovral - trade name for an oral contraceptive containing estradiol and norgestrel estrogen, oestrogen - a general term for female steroid sex hormones that are secreted by the ovary and responsible for typical female sexual characteristics |