- rare earth as a noun:
- 1
rare earth
noun
1 rare earth
Any element of the lanthanide series (atomic numbers 57 through 71).
synonyms: lanthanide, lanthanoid, lanthanon, rare-earth element.
Dutch: lanthanide
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noun
Any element of the lanthanide series (atomic numbers 57 through 71).
synonyms: lanthanide, lanthanoid, lanthanon, rare-earth element.
Dutch: lanthanide
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