from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The pale yellow or gray-yellow, protein-containing fluid portion of the blood in which the blood cells and platelets are normally suspended.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The clear fluid portion of blood in which the red blood cells, white blood cells and platelets are suspended; forms serum upon clotting.
from the GNU version of the Collaborative International Dictionary of English
- n. the colorless fluid of the blood, in which the red and white blood corpuscles are suspended. It may be obtained by centrifuation of blood to remove the blood cells. It is distinguished from serum in that plasma still has the fibrin of blood, and may be clotted, while in serum the fibrin has been removed.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the colorless watery fluid of the blood and lymph that contains no cells, but in which the blood cells (erythrocytes, leukocytes, and thrombocytes) are suspended
Sorry, no etymologies found.