| 释义 |
rare earth
rare earthn.1. Any of various oxides of the rare-earth elements.2. A rare-earth element.
[rare (because the minerals from which the rare-earth elements were first isolated are uncommon) + earth, metallic oxide.]rare earth n 1. (Elements & Compounds) any oxide of a lanthanide 2. (Elements & Compounds) Also called: rare-earth element another name for lanthanide rare′ earth′
n. the oxide of any of the rare-earth elements contained in various minerals. [1875–80] Thesaurus| Noun | 1. | rare earth - any element of the lanthanide series (atomic numbers 57 through 71)lanthanide, lanthanoid, lanthanon, rare-earth elementgroup, grouping - any number of entities (members) considered as a unitterbium metal - a separate group of related lanthanides, including terbium, europium, gadolinium, and sometimes dysprosium |
rare earth
rare earth1. any oxide of a lanthanide 2. another name for lanthanideAcronymsSeeRErare earth
Related to rare earth: Rare earth element, rare earth magnetsSynonyms for rare earthnoun any element of the lanthanide series (atomic numbers 57 through 71)Synonyms- lanthanide
- lanthanoid
- lanthanon
- rare-earth element
Related Words- group
- grouping
- terbium metal
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