Definitions

1. noun

The study of the presence, concentration, and characteristics of substances in the blood or other bodily fluids, especially antibodies or antigens.

“The doctor used serology to diagnose the patient’s autoimmune disease.”

2. noun

A blood test or other laboratory test that measures the presence of a specific substance in the blood or other bodily fluids.

“The doctor ordered a serology test to check for the presence of a viral infection.”