rare earth

noun

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

China and other parts of Southeast Asia dominate both the mining and processing of rare earths. Washington Post, "Rare Earths, the U.S.-China Trade War and Your Phone," 18 Sep. 2019 The most obvious being pure frozen water in a drying world, and the other strategic materials such as rare earths and uranium that the United States lacks today. Letters To The Editor, The Mercury News, "Letter: Denmark may face Greenland bidding war," 29 Aug. 2019 In 2016, China released a five-year plan specifically for rare earths. Los Angeles Times, "The hidden costs of China’s rare-earth trade," 29 July 2019 In 2010 China drastically cut its export quotas for rare earths, leaving the world scrambling for alternatives. The Economist, "A scramble for the minerals used in renewable energy is under way," 15 Mar. 2018 Russia wants to tap into that zone, which is estimated to have about 13 percent of the world's oil, 30 percent of the world's natural gas, and other rare earth minerals. Courtney Linder, Popular Mechanics, "Russia is Sailing a 'Floating Chernobyl' Into the Arctic," 26 Aug. 2019 Greenland is thought to have the largest deposits outside China of rare earth minerals used to make batteries and cellphones. David Rising, BostonGlobe.com, "World powers increasingly see icy Arctic as a hot property," 22 Aug. 2019 Another idea uses an electric field to change the polarization of a material—a rare earth metal—to warm and cool. Chase Purdy, Quartz, "India is the epicenter of rethinking air conditioning," 26 July 2019 One concept plays with the idea of ditching coolants and using rare earth materials and magnetic fields to generate heat and cold air. Chase Purdy, Quartz, "India is the epicenter of rethinking air conditioning," 26 July 2019

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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Last Updated

4 Oct 2019

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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

noun
\ 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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Rhyming Dictionary: Words that rhyme with rare earth

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