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iridium

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noun irid·i·um \i-ˈri-dē-əm\

Definition of iridium

  1. :  a rare silver-white hard brittle very heavy metallic element — see element table



Origin of iridium

New Latin, from Latin irid-, iris; from the colors produced by its dissolving in hydrochloric acid


First Known Use: 1804

Rhymes with iridium


IRIDIUM Defined for Kids

iridium

play
noun irid·i·um \i-ˈri-dē-əm\

Definition of iridium for Students

  1. :  a hard brittle heavy metallic chemical element




Medical Dictionary

iridium

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noun irid·i·um \ir-ˈid-ē-əm\

Medical Definition of iridium

  1. :  a silver-white hard brittle very heavy metallic element of the platinum group used especially in hardening platinum for alloys (as for surgical instruments)—symbol Ir; see element table




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