Meaning Of The Word Iridium

Real Dictionary

What's the definition of Iridium? Find Iridium meanings, definitions and more at the Real Dictionary online.

Iridium Meaning

Iridium Definition
Iridium Definition

What's The Definition Of Iridium?

iridium in American English
a white, extremely dense, brittle, corrosion-resistant chemical element, one of the platinum metals: alloys of iridium are used in electrodes, pen points, crucibles, etc.: symbol, Ir; at. no., 77
noun: a precious metallic element resembling platinum: used in platinum alloys and for the points of gold pens; at. wt.: 192.2; at. no.: 77; sp. gr.: 22.4 at 20°C

iridium in British English
noun: a very hard inert yellowish-white transition element that is the most corrosion-resistant metal known. It occurs in platinum ores and is used as an alloy with platinum. Symbol: Ir; atomic no: 77; atomic wt: 192.22; valency: 3 or 4; relative density: 22.42

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