rare earth

noun

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
2

Examples of rare earth in a Sentence

Recent Examples on the Web
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President Xi Jinping was the only foreign leader that stood up to Trump on trade and forced him to back down by weaponizing Beijing’s control of rare earth materials. Shuli Ren, Boston Herald, 4 Jan. 2026 According to project specifications, the Missouri site will produce significant quantities of neodymium and praseodymium, alongside a range of strategic heavy rare earths including dysprosium, terbium, samarium, gadolinium, and holmium. Aman Tripathi, Interesting Engineering, 3 Jan. 2026 China retaliated with tit-for-tat tariff hikes and cut the supply of rare earths. Reader Commentary, Baltimore Sun, 3 Jan. 2026 President Xi Jinping was the only foreign leader who stood up to Trump’s bullying tactics on trade and forced him to back down by weaponizing Beijing’s control of rare earth materials. Shuli Ren, Twin Cities, 30 Dec. 2025 See All Example Sentences for rare earth

Word History

First Known Use

1875, in the meaning defined at sense 1

Time Traveler
The first known use of rare earth was in 1875

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Cite this Entry

“Rare earth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rare%20earth. Accessed 8 Jan. 2026.

Medical Definition

rare earth

noun
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
2
Last Updated: - Updated example sentences
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