What does the word serum mean?
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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 coagulation, distinguished from the circulating plasma in live blood. 3. An antitoxin as prepared for therapeutic use. 4. Whey.
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The most watery portion of animal fluids, exhaled by serous membranes. It is a constituent part of blood, milk, &c.
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[ Latin] The clear watery portion of any animal liquid separated from its corpuscular constituents and coagulable matter; especially, the clear liquid portion of blood( Blood-s.) separated from the clot( fibrin) and corpuscles. Blood-s. contains 3 albumins( all included under name of S. albumin), and 2 globulins, namely, fibrinogen and S. globulin( paraglobulin). S lactis, whey. S. diagnosis, sero-diagnosis. S. lutein, a lutein, giving blood-s. its yellowish color. S. paste. S. powder, a paste and powder made from dried and sterilized blood-s., used as a protective for wounds. S. therapy, sero-therapy.
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Usage examples for serum
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The patient had died, and though it was not really because of the serum, but because the man couldn't possibly have lived in any case, the doctor's enemies had blamed him. – The Heather-Moon by C. N. Williamson and A. M. Williamson
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I shouldn't be surprised anyday to find him introducing scarlet fever cultures into the babies' porridge in order to test a newly invented serum. – Dear Enemy by Jean Webster
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And something like blubber or pinkish wax Hiding the gash in his throat- The serum and blood blown up by the breath From emptied lungs. – Toward the Gulf by Edgar Lee Masters
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