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Definition of Rare earth
1. Noun. Any element of the lanthanide series (atomic numbers 57 through 71).
Exact synonyms: Lanthanide, Lanthanoid, Lanthanon, Rare-earth Element
Generic synonyms: Group, Grouping
Specialized synonyms: Terbium Metal
Generic synonyms: Group, Grouping
Specialized synonyms: Terbium Metal
Definition of Rare earth
1. Noun. (chemistry) naturally occurring oxides of the lanthanide metals; they are widely distributed in relatively small concentrations and are used in glassmaking, ceramic glazes etc ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Rare Earth
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