'Pap smear n[C] [Date: 1900-2000; Origin: George N. Papanicolaou (1883-1962), U.S. (Greek-born) medical scientist] AmE a medical test that takes cells from a woman's cervix and examines them for signs of cancer British Equivalent: smear test
1. There was a smear of blood on the wall. 墙上有一片血迹。