YourDictionary

polonium

noun

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

See polonium in American Heritage Dictionary 4

Learn more about polonium

link/cite print suggestion box