1. polonium

noun. ['pəˈloʊniːəm'] 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.

Rhymes with Polonium

• pandemonium
• plutonium
• harmonium
• zirconium
• ammonium
• gonium

Sentences with polonium

1. Noun, singular or mass
For example, the atomic radius of polonium is 0.167 nm.