immunoprecipitation
/ˌɪmjʊnəʊprɪˌsɪpɪˈteɪʃn/ /ɪˌmjuːnəʊprɪˌsɪpɪˈteɪʃn/Medicine and Biology
noun
The formation of insoluble immune complexes between soluble antigen and antibody; the identification or quantification of a substance by this means.
Origin
1950s; earliest use found in Clinica Chimica Acta. From immuno- + precipitation, after German Immunpräzipitation.