rare-earth element

[ rair-urth ]
See synonyms for rare-earth element on Thesaurus.com
  1. 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.

Origin of rare-earth element

First recorded in 1955–60
  • Also called rare-earth metal.

Words Nearby rare-earth element

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use rare-earth element in a sentence

Scientific definitions for rare-earth element

rare-earth element

[ râr′ûrth ]

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