WordNet
oral contraceptive pill
n. a contraceptive in the form of a pill containing estrogen and progestin to inhibit ovulation and so prevent conception [syn: pill, birth control pill, contraceptive pill, oral contraceptive, anovulatory drug, anovulant]
Wikipedia
Oral contraceptive pill
Oral contraceptives, abbreviated OCPs, also known as birth control pills, are medications taken by mouth for the purpose of birth control.