|an allergic reaction, such as vomiting, skin rash, etc, that sometimes follows 2-3 weeks after an injection of a foreign serum|
serum disease n.
See serum sickness.
serum sickness n.
A hypersensitive reaction to the administration of a foreign serum, marked by fever, swelling, skin rash, and lymph node enlargement. Also called serum disease, serum reaction.