n. A serum prepared from human or animal sources containing antigens specific for combatting an infectious disease.
The Century Dictionary and Cyclopedia
n. A serum containing the antibody to a given immunizing substance, as antidiphtheria serum, antitetanus serum, etc. See immunity.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
n. blood serum containing antibodies against specific antigens; provides immunity to a disease
Word Usage
"Rebecca Day and daughter Mollie, 12, were given an infusion of the antiserum, which is not yet proven to work in humans, on May 27 after they were exposed to the girl's infected horse on the family's property at Tewantin."