rutheniumWiktionary 原文/ruːˈθiːniəm/词源说明Ruthenia + -ium. Named by Baltic German scientist Karl Ernst Claus in 1844 in honour of Russia (using the Latin name Ruthenia).释义名词noun1A metallic chemical element (symbol Ru) with an atomic number of 44.2countableAn atom of this element.同族词派生词 16diruthenium·organoruthenium·radioruthenium·ruthenian·ammonium ruthenium chloride·ruthenate·rutheniate·ruthenic·ruthenio-·