Main Entry: morn·ing–after pill

Pronunciation: \ˌmȯr-niŋ-ˈaf-tər-\

Function: noun

Date: 1957

: an oral drug usually containing high doses of estrogen taken up to usually three days after unprotected sexual intercourse that interferes with pregnancy by inhibiting ovulation or by blocking implantation of a fertilized egg in the human uterus