rare-earth element

A form of rare earth element — Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts, which includes the lanthanides plus yttrium and scandium.

Similar
rare earthlanthanoidlanthanidelanthanon
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Meanings

nounrare-earth element (plural rare-earth elements)

plural rare-earth elements

  1. alternativeAlternative form of rare earth element.

Synonyms & antonyms

nounany element of the lanthanide series (atomic numbers 57 through 71)

Similar
rare earthlanthanoidlanthanidelanthanon
Broader
groupgrouping
Also see
lanthanidelanthanoidrare earth

Synonym sets from Open English WordNet, CC BY 4.0.

Cite this entry
APA

rare-earth element. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/rare-earth%20element

MLA

“rare-earth element.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rare-earth%20element. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “rare-earth element,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/rare-earth%20element.

Source: rare-earth element on Wiktionary, CC BY-SA 4.0.