any of a group of closely related metallic elements, comprising the lanthanides, scandium, and yttrium, that are chemically similar by virtue of having the same number of valence electrons.
- Also called rare-earth metal.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use rare-earth element in a sentence
That includes radioactive elements such as uranium, thorium and potassium, as well as rare-earth elements.A mineral found in a diamond’s flaws contains the source of some of Earth’s heat | Carolyn Gramling | November 11, 2021 | Science News
In the coming weeks, the administration will continue to review America’s manufacturing abilities for pharmaceuticals, high-capacity batteries, and rare-earth elements that are found in everything from lasers to electric vehicles.Why a global chip shortage is screwing up America’s pickup trucks | Rebecca Heilweil | April 9, 2021 | Vox
It doesn’t help that when the US extracts rare-earth elements from mines in California and Colorado, more often than not they’re shipped to China to be made into American products, Vekasi told me.
Scientific definitions for rare-earth element
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