neo·​dym·​i·​um | \ˌnē-ō-ˈdi-mē-əm \

Definition of neodymium 

: a silver-white to yellow metallic element of the rare-earth group that is used especially in magnets and lasers — see Chemical Elements Table

Examples of neodymium in a Sentence

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The inside has a magnet made with neodymium and praseodymium. Alexandra Stevenson, New York Times, "How Rare Earths (What?) Could Be Crucial in a U.S.-China Trade War," 11 July 2018 Toyota used a few tricks to reduce its neodymium use. Megan Geuss, Ars Technica, "Toyota’s new magnet won’t depend on some key rare-earth minerals," 28 Feb. 2018 Instead of neodymium or dysprosium, the magnet uses less-expensive rare-earth metals lanthanum and cerium. Megan Geuss, Ars Technica, "Toyota’s new magnet won’t depend on some key rare-earth minerals," 28 Feb. 2018 Toyota has found a way to cut the amount of neodymium in electric-motor magnets by 20 percent, with the potential to reduce it as much as 50 percent, while keeping the heat-resistant traits that make the metal a must-have. Bengt Halvorson, Car and Driver, "Toyota’s New Electric Motor Cuts Need for Costly (and Overwhelmingly China-Sourced) Rare-Earth Metal," 27 Feb. 2018 In contrast, once a wind farm is built, electricity generation is only dependent on the wind (which won’t stop blowing any time soon) and there is no continuous need for neodymium for the magnets or copper for the generator windings. Andrew Barron, Smithsonian, "The Countries Poised To Become “Renewable Superpowers”," 20 Feb. 2018 The permanent magnets can be improved, too, by making them from strongly magnetic rare-earth materials such as dysprosium and neodymium. The Economist, "Let’s twist againAs electric motors improve, more things are being electrified," 14 Sep. 2017 Yttrium and neodymium are alloyed to make the magnets in turbines for windmills. Nelson Ching, National Geographic, "How Acid—and Bacteria—Could Make Recycling Your Phone Greener," 10 June 2016 Two 40mm neodymium-magnet drivers deliver rich sound, with deep (but not overpowering) bass. Tim Moynihan, WIRED, "Memory-Foam Headphones That Sound as Good as They Feel," 6 Mar. 2014

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'neodymium.' 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 neodymium

1885, in the meaning defined above

History and Etymology for neodymium

neo- + (di)dymium, after German Neodym)

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The first known use of neodymium was in 1885

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neo·​dym·​i·​um | \ˌnē-ō-ˈdim-ē-əm \

Medical Definition of neodymium 

: a yellow metallic element of the rare-earth group symbol Nd — see Chemical Elements Table

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