0 a blood serum (= a thin yellowish liquid taken from blood) that contains antibodies (= proteins produced to fight disease) against a particular virus, bacterium, etc., used to treat or protect against disease:
Rabies antiserum is the liquid form of anti-rabies immunoglobulin made from equine plasma obtained from horses that were immunized with rabies vaccine.
They aimed to list all the venomous creatures in North and West Africa and the manufacturers of antiserums for their bites and stings.
The plants were treated with antiserum to tobacco mosaic virus.
Doctors tried giving anthrax sufferers huge amounts of penicillin, tetracycline and anthrax antiserum, probably from horses.
