1. identification of a substance (especially a protein) by its action as an antigen; - Example: "PSA in the blood can be measured with an immunochemical assay" [syn: immunoassay, immunochemical assay]
WordNet (r) 3.0 (2006):
immunoassay
n 1: identification of a substance (especially a protein) by its
action as an antigen; "PSA in the blood can be measured
with an immunochemical assay" [syn: immunoassay,
immunochemical assay]