| morning-after pill | |
| —n | |
| an oral contraceptive that is effective if taken some hours after intercourse | |
morning-after pill morn·ing-af·ter pill (môr'nĭng-āf'tər)
n.
A pill containing a drug, especially an estrogen or estrogen substitute such as diethylstilbestrol, that prevents implantation of a fertilized ovum and is therefore effective as a contraceptive after sexual intercourse.