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Defenition of the word thorium

    • Defenition of the word thorium

      • Chemical element with symbol Th and atomic number 90. It is a silvery white actinide.
      • 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

    Synonyms for the word thorium

      • atomic number 90
      • Th

    Hyponyms for the word thorium

      • radiothorium
      • thorium-228

    Hypernyms for the word thorium

      • metal
      • metallic element

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