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Ruthenium

//ɹuːˈθiːniəm// noun

Definitions

Noun
  1. 1
    A metallic chemical element (symbol Ru) with an atomic number of 44. countable, uncountable

    "Their latest catalyst includes some ruthenium."

  2. 2
    a rare polyvalent metallic element of the platinum group; it is found associated with platinum wordnet
  3. 3
    An atom of this element. countable

    "This reaction substitutes a ruthenium for an osmium."

Etymology

Ruthenia + -ium

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