柯林斯詞典morning-after pill (morning-after pills) 1. N-COUNT The morning-after pill is a pill that a woman can take some hours after having sex to prevent herself from becoming pregnant. (女性房事后服用的)緊急避孕藥[usu 'the' N in sing] 返回 morning-after pill劍橋詞典a pill containing a drug that prevents a woman from getting pregnant if it is taken a short time after she has had sex （房事后用的）女用口服避孕藥 返回 morning-after pill