a synthetic progestational hormone (trade name Norlutin) used in oral contraceptives and to treat endometriosis
例句
用作名词 (n.)
The researchers also note that norethindrone acetate alone may have contributed to the pain relief in this study. 研究者也指出,单独使用黄体激素炔诺酮也可能在此一研究中对缓解疼痛有所好处。