osmium

Tanımlar (İngilizce)

1. isim A chemical element (symbol Os) with atomic number 76: a hard, brittle, heavy, bluish-white transition metal found as a trace element in alloys, mostly in platinum ores.

   “Their latest catalyst includes some osmium.”

2. isim A single atom of this element.

   “This reaction substitutes a ruthenium for an osmium.”