ruthenium

noun

ru·​the·​ni·​um rü-ˈthē-nē-əm How to pronounce ruthenium (audio)
: a rare hard silvery-white metallic element occurring in platinum ores and used especially as a catalyst and to harden alloys see Chemical Elements Table

Examples of ruthenium in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Trying on a one-off watch from the brand with case and bracelet crafted entirely from ruthenium (a member of the platinum family used by high-end watchmakers) left little doubt about the quality on offer. Allen Farmelo, Robb Report, 29 Oct. 2024 Their findings, however, strengthen the case thanks to a rare element called ruthenium. Eric Lagatta, USA TODAY, 16 Aug. 2024 The chemical makeup of the ruthenium from 66 million years ago matched the chemical makeup of the ruthenium present in a certain kind of chondritic meteorite, the scientists found. Kate Golembiewski, CNN, 16 Aug. 2024 Ultimately, the program identified an alloy consisting of specific proportions of ruthenium, chromium, and titanium. New Atlas, 2 Sep. 2024 See all Example Sentences for ruthenium 

Word History

Etymology

New Latin, from Medieval Latin Ruthenia Ruthenia

First Known Use

1829, in the meaning defined above

Time Traveler
The first known use of ruthenium was in 1829

Dictionary Entries Near ruthenium

Cite this Entry

“Ruthenium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ruthenium. Accessed 28 Nov. 2024.

Kids Definition

ruthenium

noun
ru·​the·​ni·​um rü-ˈthē-nē-əm How to pronounce ruthenium (audio)
: a hard brittle grayish rare metallic element used especially in alloys and catalysts see element

Medical Definition

ruthenium

noun
ru·​the·​ni·​um rü-ˈthē-nē-əm How to pronounce ruthenium (audio)
: a hard brittle grayish polyvalent rare metallic element occurring in platinum ores and used in hardening platinum alloys
symbol Ru
see Chemical Elements Table

More from Merriam-Webster on ruthenium

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