| signal symptom |
A symptom that is premonitory of an impending condition such as the aura that precedes an attack of epilepsy or migraine.
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| signal-averaged electrocardiogram |
ABBR: SAECG. An electrocardiographic study, usually performed on patients with unexplained loss of consciousness or suspected dysrhythmias, in which hundreds of QRS complexes are collected, filtered, and analyz
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| signal-to-cut off ratio |
ABBR: S/co.. A laboratory comparison of the optical density of a specimen taken from a patient to the optical density of the laboratory's positive control. In tests for antibodies to hepatitis C antibody, e.g., hepatitis
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| signet-ring cell |
A vacuolated cell with the nucleus off center. Mucus-secreting adenocarcinomas usually contain these cells.
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| significance, statistical |
SEE: statistical significance.
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