Definitions for iridiumɪˈrɪd i əm

This page provides all possible meanings and translations of the word iridium

Princeton's WordNet

  1. iridium, Ir, atomic number 77(noun)

    a heavy brittle metallic element of the platinum group; used in alloys; occurs in natural alloys with platinum or osmium

GCIDE

  1. iridium(n.)

    A rare metallic element of atomic number 77, of the same group as platinum, which it much resembles, being silver-white and indifferent to most corrosive agents, but harder, more brittle, and with a higher melting temperature (2410

  2. Origin: [NL., fr. L. iris, iridis, the rainbow. So called from the iridescence of some of its solutions. See Iris.]

Wiktionary

  1. iridium(Noun)

    A metallic chemical element (symbol Ir) with an atomic number of 77.

  2. Origin: ἶρις (because of the bright colour of many of iridium's salts)

Webster Dictionary

  1. Iridium(noun)

    a rare metallic element, of the same group as platinum, which it much resembles, being silver-white, but harder, and brittle, and indifferent to most corrosive agents. With the exception of osmium, it is the heaviest substance known, its specific gravity being 22.4. Symbol Ir. Atomic weight 192.5

  2. Origin: [NL., fr. L. iris, iridis, the rainbow. So called from the iridescence of some of its solutions. See Iris.]

The Nuttall Encyclopedia

  1. Iridium

    a metallic elementary body of rare occurrence, and found in the ores of platinum.

U.S. National Library of Medicine

  1. Iridium

    A metallic element with the atomic symbol Ir, atomic number 77, and atomic weight 192.22.


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