rare earth elements (0 synonym found)

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rare earth element  ·  rare-earth element

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Definition of rare earth elements:

(n) : (chemistry) Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts, which includes the lanthanides plus yttrium, scandium.
Definition of rare earth elements:

(n) : (chemistry) Any of a group of seventeen soft, lustrous, sometimes magnetic metals that form trivalent salts, which includes the lanthanides plus yttrium, scandium.
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