Lyrics Begin: 'Twas the night yeah uh 'twas the night 'twas the night before Christmas, and all through the house not a creature was stirring not even a mouse. From the Book: The Blenders A Cappella Christmas.
n. A screening test, especially for cervical cancer, in which a smear of cells exfoliated or scraped from the cervix or vagina is treated with Papanicolaou stain and examined under a microscope for pathological changes. Also called Papanicolaou smear, Papanicolaou test, Pap test.
Pap smear. n. A screening test, especially for cervical cancer, in which a smear of cells exfoliated or scraped from the cervix or vagina is treated with Papanicolaou stain and examined under a microscope for pathological changes.