particle beam particle accelerator • particle board · · · Info · Definitions · Characters · · particle beam · · Text Common · · Latin · · Scripts 13 · · Length 4 · · Syllables Definitions · · · (noun) a collimated flow of particles (atoms or electrons or molecules). Synonyms: particle beam. · · Noun Definition 1 Characters · · space U+0020 a latin small letter a U+0061 b latin small letter b U+0062 c latin small letter c U+0063 e latin small letter e U+0065 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074