Search Result：thorium
thorium 
(TTS Sound)
(TTS Sound)KK Pronunciation
〔 ˋθorIәm 〕
Pronunciation
〔 ˊθɒːriәm 〕
Overview of noun thorium
The noun thorium has 1 sense
- thorium, Th, atomic number 90 -- (a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands)