rare earth

American  

noun

Chemistry.

1. the oxide of any of the rare-earth elements contained in various minerals.

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rare earth British  

noun

1. any oxide of a lanthanide

2. Also called: rare-earth element.  another name for lanthanide

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Etymology

Origin of rare earth

First recorded in 1875–80

Example Sentences

“There could be pain if China gets more aggressive, restricting sales of rare earth metals for instance,” Newman says.

From Barron's

“There could be pain if China gets more aggressive, restricting sales of rare earth metals for instance,” Newman says.

From Barron's

But ongoing tensions with Beijing, including a dispute over rare earth exports, have exposed Japan's vulnerability in strategic supply chains.

From BBC

In materials, we see the need for key components such as silver and rare earth elements in crucial data center buildouts and AI-powered technologies.

From Barron's

Experts said BYD has several advantages over Tesla, including a more diverse product offering, lower-cost access to rare earth metals used in batteries, and freedom from U.S. safety and labor laws.

From Los Angeles Times