iridium
noun
irid·i·um i-ˈri-dē-əm 
: a rare silver-white hard brittle very heavy metallic element
see Chemical Elements Table
Examples of iridium in a Sentence
Recent Examples on the Web
These methods often require precious metals like platinum or iridium. —
Mrigakshi Dixit, Interesting Engineering, 17 Apr. 2026 Then in 1875 the United States was part of the global convention that founded the International Bureau of Weights and Measures, created to produce new standard meters and kilograms made of a platinum-iridium alloy, which would be distributed among the nations of the convention. —Encyclopedia Britannica, 2 Apr. 2026 Researchers create antiprotons by smashing regular protons at close to the speed of light against a block made of a metal called iridium. —Jacopo Prisco, CNN Money, 27 Mar. 2026 Season 5 takes place in the 2010s in the aftermath of the iridium-rich Goldilocks asteroid heist from last season. —Jeff Spry, Space.com, 27 Mar. 2026 See All Example Sentences for iridium
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Mrigakshi Dixit, Interesting Engineering, 17 Apr. 2026 Then in 1875 the United States was part of the global convention that founded the International Bureau of Weights and Measures, created to produce new standard meters and kilograms made of a platinum-iridium alloy, which would be distributed among the nations of the convention. —Encyclopedia Britannica, 2 Apr. 2026 Researchers create antiprotons by smashing regular protons at close to the speed of light against a block made of a metal called iridium. —Jacopo Prisco, CNN Money, 27 Mar. 2026 Season 5 takes place in the 2010s in the aftermath of the iridium-rich Goldilocks asteroid heist from last season. —Jeff Spry, Space.com, 27 Mar. 2026 See All Example Sentences for iridium
Cite this Entry
“Iridium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.grautoblog.com/dictionary/iridium. Accessed 29 Apr. 2026.
Copy CitationKids Definition
iridium
noun
irid·i·um ir-ˈid-ē-əm
: a rare silver-white hard brittle very heavy metallic element
see element
Medical Definition
iridium
noun
irid·i·um ir-ˈid-ē-əm
: 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 Chemical Elements Table
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