Pronunciation: se'rum, -umz, -a
- A clear, watery fluid, especially that moistening the surface of serous membranes, or exuded in inflammation of any of those membranes.
- The fluid portion of the blood obtained after removal of the fibrin clot and blood cells, distinguished from the plasma in circulating blood. Sometimes used as a synonym for antiserum or antitoxin.
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Examples: glitazone, GI cocktail, etc.