fundamental particle fundamentalness • fundamental principle · · · Info · Definitions · Synonyms · Characters · · fundamental particle · · Text Common · · Latin · · Scripts 20 · · Length 7 · · Syllables Definitions · · · (noun) (physics) a particle that is less complex than an atom; regarded as constituents of all matter. Synonyms: elementary particle, fundamental particle. · · Noun Definition 1 Synonyms · · · elementary particle · · Synonym 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 f latin small letter f U+0066 i latin small letter i U+0069 l latin small letter l U+006C m latin small letter m U+006D n latin small letter n U+006E p latin small letter p U+0070 r latin small letter r U+0072 t latin small letter t U+0074 u latin small letter u U+0075