RUTHENIUMS

Noun

rutheniums

plural of ruthenium

Source: Wiktionary

RUTHENIUM

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.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition

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