radioimmunoprecipitation
noun
ra·dio·im·mu·no·pre·cip·i·ta·tion
| \ -ˌim-yə-nō-pri-ˌsip-ə-ˈtā-shən, -im-ˌyü-
\
\
Medical Definition of radioimmunoprecipitation
: immunoprecipitation using antibodies or antigens labeled with a radioisotope