radioimmunotherapeutics
(RAY-dee-oh-IH-myoo-noh-THAYR-uh-PYOO-tix)
The use of radiolabeled monoclonal antibodies to treat diseases, including cancer. The radiolabeled monoclonal antibody locates and binds to substances in the body, including cancer cells. Radiation given off by the radioisotope may help kill the cancer cells.