(inorganic chemistry) The oxyacid or ruthenium (VI) H₂RuO₄

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

(chemistry) Containing ruthenium.

The territory between Central and Eastern Europe inhabited by Rusyns, on the slopes of the Carpathian Mountains in parts of Ukraine, Poland and Slovakia.

(organic chemistry) Any cyclic organometallic compound of ruthenium

plural of ruthenacycle

(inorganic chemistry) Any of a class of cuprates of ruthenium, especially those that have superconducting or magnetoresistive properties

plural of ruthenocuprate

(mineralogy) Describing minerals containing ruthenium

(mineralogy) An orthorhombic-dipyramidal mineral containing arsenic, nickel, and ruthenium.