RUTHENIUM

ruthenium, Ru, atomic number

(noun) a rare polyvalent metallic element of the platinum group; it is found associated with platinum

Source: WordNet® 3.1

Etymology

Ruthenia + -ium

Noun

ruthenium (countable and uncountable, plural rutheniums)

A metallic chemical element (symbol Ru) with an atomic number of 44.

(countable) An atom of this element.

Source: Wiktionary

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

Do you know this game?

Wordscapes is a popular word game consistently in the top charts of both Google Play Store and Apple App Store. The Android version has more than 10 million installs. This guide will help you get more coins in less than two minutes of playing the game. Continue reading Wordscapes: Get More Coins