radioimmunoprecipitation
/ˌreɪdɪəʊˌɪmjʊnəʊprɪˌsɪpɪˈteɪʃn/Medicine and Biology
noun
Immunoprecipitation using radiolabelled antigen or antibody, typically followed by autoradiography to identify radioactivity in the precipitin lines.
Origin
1960s; earliest use found in Journal of Clinical Investigation. From radio- + immunoprecipitation.