iridium

English dictionary entry

Meanings

noun

A chemical element with an atomic number of 77: a very hard, brittle, silvery-white transition metal of the platinum group.
A single atom of this element.

Pronunciation

ĭrĭd'ēəm /ɪˈɹɪd.i.əm/ LL-Q1860 (eng)-Vealhurl-iridium.wav LL-Q1860 (eng)-Naomi Persephone Amethyst (NaomiAmethyst)-iridium.wav

Word forms

iridium iridiums

Etymology

From international scientific vocabulary, from the New Latin.

Related words

iridescence iridin iridiosmium iridise iridize iris mul:Ir

Derived words

diiridium eka-iridium heterochromia iridium iridarsenite iridate iridian iridiate iridic iridiferous iridio- iridious iridite iridium black iridium oxide iridium-pointed iridium tetrachloride iridium trichloride iridosmine organoiridium osmiridium platiniridium platino-iridium platinum-iridium radioiridium triiridium

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