serum
the clear, pale-yellow liquid that separates from the clot in the coagulation of blood; blood serum.
any watery animal fluid.
the thin, clear part of the fluid of plants.
milk whey.
Origin of serum
1Other words from serum
- se·rum·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for serum
/ (ˈsɪərəm) /
See blood serum
antitoxin obtained from the blood serum of immunized animals
physiol zoology clear watery fluid, esp that exuded by serous membranes
a less common word for whey
Origin of serum
1Derived forms of serum
- serumal, adjective
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for serum
[ sîr′əm ]
Blood serum extracted from an animal that has immunity to a particular disease. The serum contains antibodies to one or more specific disease antigens, and when injected into humans or other animals, it can transfer immunity to those diseases.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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