Webster 1913 Edition
[L., akin to Gr. [GREEK][GREEK][GREEK], Skr.
The watery portion of certain animal fluids, as blood, milk, etc.
A thin watery fluid, containing more or less albumin, secreted by the serous membranes of the body, such as the pericardium and peritoneum.
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.–
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
an albuminous body, closely related to egg albumin, present in nearly all serous fluids; esp., the albumin of blood serum.–
Serum of milk
the whey, or fluid portion of milk, remaining after removal of the casein and fat.
Webster 1828 Edition
1. The thin transparent part of the blood.
2. The thin part of milk; whey.