Rare Earth - Wiktionary

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• 1 English Toggle English subsection
  • 1.1 Etymology
  • 1.2 Noun
    • 1.2.1 Derived terms
    • 1.2.2 Translations
  • 1.3 Further reading

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• Discussion

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English

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Etymology

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(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium. Particularly: “When did the term start to be used?”)

Noun

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rare earth (plural rare earths)

1. (chemistry) Any of the naturally occurring oxides of the lanthanide metals; they are widely distributed in relatively small concentrations and are used in glassmaking, ceramic glazes etc.
2. a rare earth element

Derived terms

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• rare earth element
• rare earth metal
• rare earth mineral

Translations

[edit] naturally occurring oxide of the lanthanide metals

Afrikaans: seldsame aarde Chinese: Mandarin: 稀土 (zh) (xītǔ) Finnish: maametallimineraali French: terre rare (fr) f German: seltene Erde f Irish: tearcithir f, tearc-chré f Japanese: 希土類 (ja) (きどるい, kidorui), レア・アース (rea-āsu) Kazakh: сирекжер (sirekjer) Korean: 희토류(稀土類) (huitoryu) Russian: ре́дкие зе́мли f pl (rédkije zémli) Spanish: tierra rara f Vietnamese: đất hiếm Welsh: prinfwyn m

Further reading

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• rare-earth element on Wikipedia.Wikipedia
• “rare earth”, in Lexico, Dictionary.com; Oxford University Press, 2019–2022.

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