ruthenium
n. விழுப்பொன் வகை சார்ந்த அரிய திண்மத் தனிமவகை.
Ru*the"ni*um, n. Etym: [NL. So named from the Ruthenians, a Little Russian people, as coming from Russia, the metal having been found in the Ural mountains.] (Chem.) Defn: A rare element of the light platinum group, found associated with platinum ores, and isolated as a hard, brittle steel-gray metal which is very infusible. Symbol Ru. Atomic weight 103.5. Specific gravity 12.26. See Platinum metals, under Platinum.