Osmium

//ˈɑz.mi.əm// noun

Definitions

Noun
  1. 1
    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. countable, uncountable

    "Their latest catalyst includes some osmium."

  2. 2
    a hard brittle blue-grey or blue-black metallic element that is one of the platinum metals; the heaviest metal known wordnet
  3. 3
    A single atom of this element. countable

    "This reaction substitutes a ruthenium for an osmium."

Etymology

From Ancient Greek ὀσμή (osmḗ, “smell”) (because of the strong smell of its oxide) + -ium.

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