Serum

Se"rum

(s"rm), n. [L., akin to Gr. , Skr. sra curd.] (Physiol.) (a) The watery portion of certain animal fluids, as blood, milk, etc. (b) A thin watery fluid, containing more or less albumin, secreted by the serous membranes of the body, such as the pericardium and peritoneum.
[1913 Webster]

Blood serum, the pale yellowish fluid which exudes from the clot formed in the coagulation of the blood; the liquid portion of the blood, after removal of the blood corpuscles and the fibrin. -- Muscle serum, the thin watery fluid which separates from the muscles after coagulation of the muscle plasma; the watery portion of the plasma. See Muscle plasma, under Plasma. -- Serum albumin (Physiol. Chem.), an albuminous body, closely related to egg albumin, present in nearly all serous fluids; esp., the albumin of blood serum. -- Serum globulin (Physiol. Chem.), paraglobulin. -- Serum of milk (Physiol. Chem.), the whey, or fluid portion of milk, remaining after removal of the casein and fat.
[1913 Webster]

 

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Tue 18th December 2018