Iridium

//ɪˈɹɪd.i.əm// noun

Definitions

Noun
  1. 1
    A chemical element (symbol Ir) with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group. uncountable

    "Iridium is extremely rare on the surface of the earth but much more common in meteorites."

  2. 2
    a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium wordnet
  3. 3
    A single atom of this element. countable

Etymology

From international scientific vocabulary, from the New Latin.

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