noun
emergency contraceptive pill; morning-after pill
Medical term for oral emergency contraception taken after unprotected intercourse to prevent pregnancy.
緊急避妊ピルは、性交後72時間以内に服用する必要がある。
The emergency contraceptive pill must be taken within 72 hours after intercourse.
Compound of 緊急 (emergency) + 避妊 (contraception) + ピル (pill). The word ピル is borrowed from English 'pill'.