radioiodine

[ rey-dee-oh-ahy-uh-dahyn, -din, -deen ]
/ ˌreɪ di oʊˈaɪ əˌdaɪn, -dɪn, -ˌdin /

noun Chemistry.

any of nine radioisotopes of iodine, especially iodine 131 and iodine 125, used as radioactive tracers in research and clinical diagnosis and treatment.

Origin of radioiodine

First recorded in 1935–40; radio- + iodine

Words nearby radioiodine

radioimmunoassay, radioimmunodiffusion, radioimmunoelectrophoresis, radioimmunology, radioimmunoprecipitation, radioiodine, radioiron, radioisotope, radiolabel, radioland, radiolarian

Medical definitions for radioiodine

radioiodine
[ rā′dē-ō-ī′ə-dīn′ ]

n.

A radioactive isotope of iodine widely used as a tracer.