| 释义 |
birth control pill
noun
: any of various preparations that usually contain a combination of a progestin (as norethindrone) and an estrogen (as ethinyl estradiol) but sometimes only a progestin, are taken orally especially on a daily basis, and act as contraceptives typically preventing ovulation by suppressing secretion of gonadotropins (as luteinizing hormone) — called also contraceptive pill oral contraceptive |