A radioactive substance that carries radiation directly to cancer cells. A radioimmunoconjugate is made by attaching a radioactive molecule to an immune substance, such as a monoclonal antibody, that can bind to cancer cells. This may help kill cancer cells without harming normal cells. Radioimmunoconjugates may also be used with imaging to help find cancer cells in the body.
( RAY-dee-oh-IH-myoo-noh-KON-jih-gut )
Source: NCI Dictionary of Cancer Terms
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