in·di·um | \ˈin-dē-əm \

Definition of indium 

: 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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Thin is in The researchers focused on thin-film technology, which is dominated by two materials: cadmium telluride (often called cadtel) and CIGS, or copper indium gallium selenide. John Timmer, Ars Technica, "Installation costs so much that it’s better to use expensive solar panels," 2 May 2018 Luminar's lidar uses indium-gallium arsenide sensors to detect return flashes. Timothy B. Lee, Ars Technica, "Velodyne invented modern lidar—it’s about to face real competition," 19 Apr. 2018 Luminar made the cost question harder by making its lidar’s receiver (the that acts like your eye’s retina) out of indium gallium arsenide (InGaAs) instead of silicon. Alex Davies, WIRED, "Luminar's New Lidar Could Bring Vision to Every Robocar in the World," 12 Apr. 2018 That team is charged with making Luminar’s receivers out of indium gallium arsenide (InGaAs) instead of silicon, which Russell said makes Luminar’s LIDAR see farther and better without the risk of damaging people’s retinas. Andrew J. Hawkins, The Verge, "LIDAR maker Luminar is scaling up and slashing costs in effort to dominate self-driving cars," 12 Apr. 2018 For these components, more exotic materials like indium phosphide, gallium arsenide, and germanium work better. Timothy B. Lee, Ars Technica, "How the lidar-on-a-chip technology GM just bought probably works," 11 Oct. 2017 The key observation came when the researchers looked into a gallium alloy, galinstan, composed of gallium, indium, and tin. John Timmer, Ars Technica, "Running chemical reactions in liquid metal makes atomically thin materials," 19 Oct. 2017 The team called the color YInMn after the chemicals that were combined to create it: yttrium, indium and manganese oxides. Brigit Katz, Smithsonian, "Crayola to Debut Crayon Inspired by New Shade of Blue," 9 May 2017 Both types contain a layer of gallium indium arsenide sandwiched between alternating electricity-conducting layers of reflective gallium arsenide and gallium aluminum arsenide. Josh Mchugh, WIRED, "Beam On," 1 Aug. 2001

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'indium.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of indium

1864, in the meaning defined above

History and Etymology for indium

International Scientific Vocabulary ind- + New Latin -ium

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Time Traveler for indium

The first known use of indium was in 1864

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in·di·um | \ˈin-dē-əm \

Medical Definition of indium 

: 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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