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View synonyms for rare earth
rare earth
noun
, Chemistry.
- the oxide of any of the rare-earth elements contained in various minerals.
rare earth
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Word History and Origins
Origin of rare earth1
First recorded in 1875–80
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Example Sentences
But Joanna Magnusson was one of the rare Earth women who had come out with her husband, twenty years ago.
From Project Gutenberg
In 1797 Ekeberg showed that gadolinite contained another rare earth, which was given the name yttria.
From Project Gutenberg
The rare earth metals are found in the minerals gadolinite, samarskite, fergusonite, euxenite and cerite.
From Project Gutenberg
The first of the rare earth minerals was discovered in 1794 by J. Gadolin and was named gadolinite from its discoverer.
From Project Gutenberg
These crude earths, yttria and ceria, have supplied most if not all of the “rare earth” metals.
From Project Gutenberg
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