radioactive iodine excretion test radioactive dust • radioactive iodine test · · · Info · Definitions · Characters · · radioactive iodine excretion test · · Text Common · · Latin · · Scripts 33 · · Length 10 · · Syllables Definitions · · · (noun) radioactive iodine test that measures the amount of radioactive iodine excreted in the urine. Synonyms: radioactive iodine excretion test. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 c latin small letter c U+0063 d latin small letter d U+0064 e latin small letter e U+0065 i latin small letter i U+0069 n latin small letter n U+006E o latin small letter o U+006F r latin small letter r U+0072 s latin small letter s U+0073 t latin small letter t U+0074 v latin small letter v U+0076 x latin small letter x U+0078