ruthenium

Ruthenia + -ium

• enPR: ro͞o-thē′-nē-əm, IPA^(key): /ɹuːˈθiːniəm/

• Audio (Southern England):

  (file)

• Audio (General American):

  (file)

ruthenium (countable and uncountable, plural rutheniums)

1. A metallic chemical element (symbol Ru) with an atomic number of 44.
2. (countable) An atom of this element.

• David Barthelmy (1997–2025) “Ruthenium”, in Webmineral Mineralogy Database.
• “ruthenium”, in Mindat.org‎^[1], Hudson Institute of Mineralogy, 2000–2025.

• IPA^(key): [ˈrutɛːnɪjum]

ruthenium n

1. ruthenium

From Medieval Latin Ruthenia +‎ -ium.

ruthenium n (singular definite rutheniummet, not used in plural form)

1. ruthenium

   Coordinate term: platinmetal

• “ruthenium” in Den Danske Ordbog

• Audio:

  (file)

ruthenium n (uncountable)

1. ruthenium

• (Classical Latin) IPA^(key): [rʊˈtʰɛ.ni.ũː]
• (modern Italianate Ecclesiastical) IPA^(key): [ruˈt̪ɛː.ni.um]

ruthenium n (genitive rutheniī); second declension

1. ruthenium

Second-declension noun (neuter).

• IPA^(key): [ryˈðeː˨ɲɔ˧m]

ruthenium n

1. (uncountable) ruthenium
2. A part of ruthenium

From Medieval Latin Ruthenia +‎ -ium.

ruthenium n (definite singular rutheniumet, uncountable)

1. ruthenium, chemical element, symbol Ru

• “ruthenium” in The Bokmål Dictionary.
• “ruthenium” in Det Norske Akademis ordbok (NAOB).

From Medieval Latin Ruthenia +‎ -ium.

ruthenium n (definite singular rutheniumet, uncountable)

1. ruthenium, chemical element, symbol Ru

• “ruthenium” in The Nynorsk Dictionary.