ALL meanings of polonium
po·lo·ni·um
P p - noun polonium a radioactive element discovered by Pierre and Marie Curie in 1898; Symbol: Po; atomic number: 84; atomic weight: about 210. 1
- noun polonium a very rare radioactive element that occurs in trace amounts in uranium ores. The isotope polonium-210 is produced artificially and is used as a lightweight power source in satellites and to eliminate static electricity in certain industries. Symbol: Po; atomic no: 84; half-life of most stable isotope, 209Po: 103 years; valency: –2, 0, 2, 4, or 6; relative density (alpha modification): 9.32; melting pt: 254°C; boiling pt: 962°C 0
- noun polonium a radioactive, nonmetallic chemical element formed naturally by the disintegration of radium or synthetically by the neutron irradiation of bismuth followed by beta decay: used as a power source in space satellites, as an aid in inducing electric discharges, etc.: symbol, Po; at. no., 84 0