rare-earth element
Americannoun
Etymology
Origin of rare-earth element
First recorded in 1955–60
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
Energy Fuels already has upstream rare-earth element assets, including mining projects and separation capacity.
From The Wall Street Journal ● Jun. 23, 2026
Australia and Canada, for instance, have significant rare-earth resources that can help support America’s rare-earth element needs.
From MarketWatch ● Nov. 21, 2025
Ramaco Resources, a metallurgical coal producer, is developing its Brook Mine, which holds significant heavy rare-earth element deposits.
From Barron's ● Oct. 16, 2025
Iridium was the key, rare-earth element that tipped geologists off that an asteroid struck the Earth at the end of the Cretaceous.
From Slate ● Feb. 7, 2013
The company’s Mountain Pass mine, discovered in 1949 by uranium prospectors who noticed local radioactivity, dominated rare-earth element production through the 1980s.
From New York Times ● Apr. 21, 2010
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
