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serum

Pronunciation: se'rum, -umz, -a

Definition:

  1. A clear, watery fluid, especially that moistening the surface of serous membranes, or exuded in inflammation of any of those membranes.
  2. 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.

[L. whey]

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.

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