atomic number 109 atomic number 108 • atomic number 11 · · · Info · Definitions · Synonyms · Characters · · atomic number 109 · · Text Common · · Latin · · Scripts 17 · · Length 9 · · Syllables Definitions · · · (noun) a radioactive transuranic element. Synonyms: meitnerium, Mt, element 109, atomic number 109. · · Noun Definition 1 Synonyms · · · meitnerium · · Synonym 1 mt · · Synonym 2 element 109 · · Synonym 3 Characters · · space U+0020 0 digit zero U+0030 1 digit one U+0031 9 digit nine U+0039 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 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 t latin small letter t U+0074 u latin small letter u U+0075