atomic number 43 atomic number 42 • atomic number 44 · · · Info · Definitions · Synonyms · Characters · · atomic number 43 · · Text Common · · Latin · · Scripts 16 · · Length 7 · · Syllables Definitions · · · (noun) a crystalline metallic element not found in nature; occurs as one of the fission products of uranium. Synonyms: technetium, Tc, atomic number 43. · · Noun Definition 1 Synonyms · · · technetium · · Synonym 1 tc · · Synonym 2 Characters · · space U+0020 3 digit three U+0033 4 digit four U+0034 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