Noun: blood serum blúd seer-um
- An amber, watery fluid, rich in proteins, that separates out when blood coagulates
"Blood serum is often used in laboratory tests to detect antibodies";
- serum
Derived forms: blood serums
Type of: bodily fluid, body fluid, humor [US], humour [Brit, Cdn], liquid body substance
Part of: blood
Encyclopedia: Blood serum