beta ray beta radiator • beta receptor · · · Info · Definitions · Synonyms · Characters · · beta ray · · Text Common · · Latin · · Scripts 8 · · Length 3 · · Syllables Definitions · · · (noun) radiation of beta particles during radioactive decay. Synonyms: beta radiation, beta ray, electron radiation. · · Noun Definition 1 Synonyms · · · beta radiation · · Synonym 1 electron radiation · · Synonym 2 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 e latin small letter e U+0065 r latin small letter r U+0072 t latin small letter t U+0074 y latin small letter y U+0079