immunoassay

== English == === Etymology === From immuno- + assay. === Pronunciation === Rhymes: -eɪ === Noun === immunoassay (plural immunoassays) A test for the presence of a substance using the reaction of an antibody to its antigen, making use of the high selectivity of components of biological immune systems. ==== Derived terms ==== === Verb === immunoassay (third-person singular simple present immunoassays, present participle immunoassaying, simple past and past participle immunoassayed) To carry out such a test.