thorium
pronunciation
How to pronounce thorium in British English:
UK [ˈθɔ:riəm]
How to pronounce thorium in American English:
US [ˈθɔriəm, ˈθor-]
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- Noun:
- 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