Rare earth definitions

Rare earth

1) Erbium 2) Kind of element 3) Metallic element 4) Monazite 5) Motown artist 6) Oxide of a lanthanide 7) Oxide of cerium, yttrium, etc 8) Terbium or thulium
Found on https://www.crosswordclues.com/clue/rare-earth

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rare earth

An oxide of a rare earth element.
Found on http://antoine.frostburg.edu/chem/senese/101/glossary/r.shtml

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rare earth

[n] - any element of the lanthanide series (atomic numbers 57 through 71)
Found on http://www.webdictionary.co.uk/definition.php?query=rare%20earth

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Rare Earth

Any of a group of 15 similar metals with atomic numbers 57 to 71. Also rare earth element, rare earth metal, lanthanide series, uncommon metals, Mischmetal.
Found on https://steelforge.com/literature/steelog-the-5000-word-metals-glossary/

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rare earth

rare-earth element noun any element of the lanthanide series (atomic numbers 57 through 71)
Found on https://www.encyclo.co.uk/local/20974

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