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BNC: 49033 COCA: 35022
thorium
noun [U] chemistry /ˈθɔːriəm/
  1. 1
    a chemical element that is a white radioactive metal. Its symbol is Th.
     Synonyms and related words
    Chemical elements:actinium, alkali metal, americium...
  2. From our crowdsourced Open Dictionary
    2
    a radioactive element, which some countries are planning to use as a source of nuclear power because it is considered to be safer than uranium

    Officials are currently selecting a site for the reactor, which would be the first of its kind, using thorium for the bulk of its fuel instead of uranium – the fuel for conventional reactors.

    Submitted from United Kingdom on 02/11/2011
BNC: 49033 COCA: 35022
BNC: 49033 COCA: 35022

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