polonium Polonism • Polonius · · · Info · Definitions · Synonyms · Characters · · polonium · · Text Latin · · Script 8 · · Length Definitions · · · (noun) a radioactive metallic element that is similar to tellurium and bismuth; occurs in uranium ores but can be produced by bombarding bismuth with neutrons in a nuclear reactor. Synonyms: Po, atomic number 84. · · Noun Definition 1 Synonyms · · · po · · Synonym 1 atomic number 84 · · Synonym 2 Characters · · 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 o latin small letter o U+006F p latin small letter p U+0070 u latin small letter u U+0075