Wiktionary
morning-after pill
n. A contraceptive in the form of a pill taken shortly after sexual intercourse.
WordNet
morning-after pill
n. a large dose of estrogen taken orally within 24 to 72 hours after intercourse; prevents implantation of a fertilized ovum and so acts as a contraceptive; commonly used after rape or incest
Usage examples of "morning-after pill".
A man who could get a morning-after pill in the Arab Republic of Egypt would have no problem getting hold of a gun.
She'd told Linus that the morning-after pill was for her friend, Jenny, but it wasn't.
So, whatever means of contraceptionshe'd been using, she must have had an accident anaccident she hadn't been aware of, otherwise she'd haverushed out for a morning-after pill.