ruthenium

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noun ru·the·ni·um \rü-ˈthē-nē-əm\

Definition of ruthenium

  1. :  a rare hard silvery-white metallic element occurring in platinum ores and used especially as a catalyst and to harden alloys — see element table

Origin and Etymology of ruthenium

New Latin, from Medieval Latin Ruthenia Ruthenia


First Known Use: 1848


Medical Dictionary

ruthenium

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noun ru·the·ni·um \rü-ˈthē-nē-əm\

Medical Definition of ruthenium

  1. :  a hard brittle grayish polyvalent rare metallic element occurring in platinum ores and used in hardening platinum alloys—symbol Ru; see element table


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