[rey-dee-oh-im-yuh-nol-uh-jee] /ˌreɪ di oʊˌɪm yəˈnɒl ə dʒi/

the study of biological substances or processes with the aid of antigens or antibodies labeled with a radioactive isotope.

radioimmunology ra·di·o·im·mu·nol·o·gy (rā’dē-ō-ĭm’yə-nŏl’ə-jē)
The study of immunity by radiolabeling and other radiological methods.
ra’di·o·im’mu·no·log’i·cal (-nə-lŏj’ĭ-kəl) adj.


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