word
radionuclide
ray-dee-oh-NOO-klyd
ˌreɪdioʊˈnjuːklaɪdListen
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Syllable breakdown
radionuclide
Dictionary meaning
an unstable atomic nucleus that undergoes radioactive decay, emitting radiation in the process; radionuclides used in medicine include technetium-99m, iodine-131, fluorine-18, and lutetium-177; their physical and chemical properties determine their medical applications for imaging or therapy
Synonyms: radioactive isotope, radioisotope
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