pap : Idioms & Phrases
pap smear
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noun a sample of secretions and superficial cells of the uterine cervix and uterus; examined with a microscope to detect any abnormal cells
cervical smear; Papanicolaou smear.
WordNet
pap test
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noun a method of examining stained cells in a cervical smear for early diagnosis of uterine cancer
smear test; Papanicolaou test.