rare earth


Definition of rare earth

1 : any of a group of similar oxides of metals or a mixture of such oxides occurring together in widely distributed but relatively scarce minerals

Examples of rare earth in a Sentence

Recent Examples on the Web

For example, neodymium is the most commonly used rare earth magnet. Matthew Jancer, Popular Mechanics, "Speaking of Spokes: The Design That Could Change How Electric Car Motors Are Made," 20 Nov. 2018 Support from the Japanese government for ispace project reflects the possibility of finding rare earths or water—for turning into fuel—on the moon. Mayumi Negishi, WSJ, "Japanese Startups Chase Otherworldly Opportunities," 26 Sep. 2018 Further, 86% of the items removed at the SMA’s request were for rare earths and critical minerals. WSJ, "Steel Tariffs Include Targeted Exemptions," 30 Oct. 2018 In 2010, Beijing drastically slashed an export quota on rare earths, a group of minerals essential for making high-tech gadgets like iPhones—a play at using China’s control of 97% of global output to raise prices. Chuin-wei Yap, WSJ, "U.S. Reliance on Obscure Imports From China Points to Strategic Vulnerability," 24 Sep. 2018 Tesla has also been using rare Earth-free AC-induction MGUs in the Model S and Model X EVs, but that company has switched to a brushless design for the Model 3. Jonathan M. Gitlin, Ars Technica, "BMW has a new all-electric model coming in 2020—the iX3," 25 Apr. 2018 The list of Chinese products targeted with U.S. tariffs include vaping devices, rare earth metals and LED light bulbs. Grace Dobush, Fortune, "Here's What Will Happen When China and U.S. Tariffs Take Effect Friday," 4 July 2018 Chinese firms are interested in mining zinc, uranium and rare earths in Greenland. The Economist, "China wants to be a polar power," 12 Apr. 2018 The country sits on an estimated $6 trillion worth of mineral reserves, including iron, gold, zinc, graphite and a host of rare earth materials needed in the production of smartphones and other high tech products. James Griffiths, CNN, "After nukes and summits, can Kim Jong Un reform North Korea's economy?," 8 June 2018

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

1875, in the meaning defined at sense 1

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The first known use of rare earth was in 1875

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More Definitions for rare earth

rare earth

\ ˌrer-ˈərth How to pronounce rare earth (audio) \

Medical Definition of rare earth

1 : any of a group of similar oxides of metals or a mixture of such oxides occurring together in widely distributed but relatively scarce minerals

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to boil down or concentrate

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