A sill is an intrusive rock formation. These formations occur when magma solidifies underground and then intrudes into the overlying rock formation. They are distinct from similarly formed domes and dikes because sills are horizontal to the surface.
The Papanicolaou test (abbreviated as Pap test, known earlier as Pap smear, cervical smear, or smear test) is a method of cervical screening used to detect potentially pre-cancerous and cancerous processes in the cervix (opening of the uterus or womb). Pap smear is performed by opening the vaginal canal with a speculum, then collecting cells at the outer opening of the cervix at the transformation zone (where the outer squamous cervical cells meet the inner glandular endocervical cells).
Pap Smear. A Pap smear is a test used to look for changes in the cells of the cervix which indicate cervical cancer or conditions that may develop into cancer. Pap smears do not diagnose cancer, but they detect 95% of cervical cancers at a stage when they cannot be seen with the naked eye. positive result indicates the presence of abnormal cells. Your physician may also call this an abnormal Pap. Remember that this is a test, not a diagnosis. A positive result does not prove that you have cancer or even dysplasia (a pre-cancerous condition).