expansion bolt expansion bit • expansion cam · · · Info · Definitions · Characters · · expansion bolt · · Text Common · · Latin · · Scripts 14 · · Length 4 · · Syllables Definitions · · · (noun) a bolt that has an attachment that expands as the bolt is driven into a surface. Synonyms: expansion bolt. · · Noun Definition 1 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 i latin small letter i U+0069 l latin small letter l U+006C n latin small letter n U+006E o latin small letter o U+006F p latin small letter p U+0070 s latin small letter s U+0073 t latin small letter t U+0074 x latin small letter x U+0078