: a silvery malleable fusible chiefly trivalent metallic element that occurs especially in sphalerite ores and is used especially as a plating material, in alloys, and in electronics see Chemical Elements Table
Examples of indium in a Sentence
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The researchers successfully applied their strategy to a variety of electrolytes — including those based on zirconium, indium, yttrium, and erbium — achieving consistent results across the board.
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Mrigakshi Dixit, Interesting Engineering, 17 Apr. 2026
Intertek reportedly tested the optical sheet, diffuser plate, and LED modules in each TV using a minimum detection standard of 0.5 mg/kg for cadmium and 2 mg/kg for indium.
—Scharon Harding, ArsTechnica, 19 Mar. 2026
The potential diversion of the supply of indium phosphide chips manufactured by Emcore’s digital chips business away from the U.S. was also identified as a national security risk, the Treasury Department added.
—Victor Loh, CNBC, 3 Jan. 2026
Finally, a transparent indium tin oxide film provided the electrical circuit for the small detector, which could be easily merged with existing wearables.
—New Atlas, 25 Oct. 2025
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Mrigakshi Dixit, Interesting Engineering, 17 Apr. 2026
Intertek reportedly tested the optical sheet, diffuser plate, and LED modules in each TV using a minimum detection standard of 0.5 mg/kg for cadmium and 2 mg/kg for indium.
—Scharon Harding, ArsTechnica, 19 Mar. 2026
The potential diversion of the supply of indium phosphide chips manufactured by Emcore’s digital chips business away from the U.S. was also identified as a national security risk, the Treasury Department added.
—Victor Loh, CNBC, 3 Jan. 2026
Finally, a transparent indium tin oxide film provided the electrical circuit for the small detector, which could be easily merged with existing wearables.
—New Atlas, 25 Oct. 2025
See All Example Sentences for indium
Cite this Entry
“Indium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/indium. Accessed 1 May. 2026.
Copy CitationMedical Definition
indium
noun
in·di·um
ˈin-dē-əm 
: a malleable fusible silvery metallic element that is chiefly trivalent, occurs especially in sphalerite ores, and is used as a plating for bearings, in alloys having a low melting point, and in making transistors
—symbol In
see Chemical Elements Table
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