radioimmunoassay radiohumeral • radio interferometer · · · Info · Definitions · Characters · · radioimmunoassay · · Text Latin · · Script 16 · · Length 6 · · Syllables Definitions · · · (noun) immunoassay of a substance that has been radioactively labeled. · · Noun Definition 1 Characters · · a latin small letter a U+0061 d latin small letter d U+0064 i latin small letter i U+0069 m latin small letter m U+006D 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 u latin small letter u U+0075 y latin small letter y U+0079