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Definitions of iridium
  1. noun
    a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium

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Definition that contains iridium
  • iridosmine a hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum); used in needles and pen nibs etc.
  • catalytic converter a converter that uses a platinum-iridium catalyst to oxidize pollutants and carbon monoxide into carbon dioxide and water; an antipollution device on an automotive exhaust system
  • osmiridium a hard and corrosion resistant mineral that is a natural alloy of osmium and iridium (usually containing small amounts of rhodium and platinum); used in needles and pen nibs etc.
  • iridic of or containing iridium
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