What does morning-after pill mean?
• MORNING-AFTER PILL (noun) The noun MORNING-AFTER PILL has 1 sense: 1. 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 Familiarity information: MORNING-AFTER PILL used as a noun is very rare.