radioimmunoassay Syllabification: (ra·di·o·im·mu·no·as·say)Pronunciation: /ˌrādēōˌimyənōˈaˌsā/Definition of radioimmunoassay noun Medicine a technique for determining antibody levels by introducing an antigen labeled with a radioisotope and measuring the subsequent radioactivity of the antibody component. radioimmunoassay in other Oxford dictionaries Definition of radioimmunoassay in the British & World English dictionary
