📚 noun • entry_id 23505
rare earth
Meanings (ES + gloss)
tierra rara
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.
Meronyms: rare earth element, rare earth metal
The metallic base of yttria, a very rare earth, discovered in a mineral called godolinite.
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