| 释义 |
contragestion, n. Med.|kɒntrəˈdʒɛstʃən|
[f. contra- + gestation n., after contraception n.]
Birth control effected after fertilization has occurred, either by preventing the implantation of the ovum in the uterine wall or by disrupting gestation at an early stage, causing abortion.
[1971Rep. Family Planning July 20/1 Once-a-month contraprogestational pill. 1973Segal & Atkinson in H.J. & J.D. Osofsky Abortion Experience xix. 403 The possibility exists..that the contragestational activity of estrogenic compounds may be independent of their general estrogenicity.] 1985E.-E. Baulieu in Baulieu & Segal Antiprogestin Steroid RU486 & Human Fertility Control 2 The term contragestion (for contra-gestation) is proposed to cover all aspects of fertility control interfering with the establishment or continuation of early pregnancy. 1987Contraception XXXV. 426 The dose was lowered in this contragestion study. 1989Daily Mail 24 Oct. 13/1 Its fundamental action is similar to that of..the IUD or coil, both of which make it impossible for the pregnancy to be sustained. Doctors call this method of fertility control, contragestion. |