Hyperonyms
(has_hyperonym)
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00031264-n:
any number of entities (members) considered as a unit
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Hyponyms
(has_hyponym)
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14624944-n:
a separate group of related lanthanides, including terbium, europium, gadolinium, and sometimes dysprosium
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Glosses
(gloss)
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14622893-n:
any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
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Glosses
(gloss)
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14625297-n:
the rare-earth elements with atomic numbers 57 through 71; having properties similar to lanthanum
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Glosses
(gloss)
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14643118-n:
a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
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Glosses
(rgloss)
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11193250-n:
Swedish chemist who discovered rare earth elements (1797-1858)
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Glosses
(rgloss)
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14624944-n:
a separate group of related lanthanides, including terbium, europium, gadolinium, and sometimes dysprosium
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Glosses
(rgloss)
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14625297-n:
the rare-earth elements with atomic numbers 57 through 71; having properties similar to lanthanum
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Glosses
(rgloss)
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14636647-n:
a trivalent metallic element of the rare earth group; forms compounds that are highly magnetic
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Glosses
(rgloss)
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14636988-n:
a trivalent metallic element of the rare earth group; occurs with yttrium
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Glosses
(rgloss)
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14637176-n:
a bivalent and trivalent metallic element of the rare earth group
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Glosses
(rgloss)
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14638041-n:
a ductile silvery-white ductile ferromagnetic trivalent metallic element of the rare earth group
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Glosses
(rgloss)
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14640222-n:
a trivalent metallic element of the rare earth group; occurs together with yttrium; forms highly magnetic compounds
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Glosses
(rgloss)
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14643118-n:
a white soft metallic element that tarnishes readily; occurs in rare earth minerals and is usually classified as a rare earth
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Glosses
(rgloss)
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14644063-n:
a trivalent metallic element of the rare earth group; usually occurs in association with yttrium
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Glosses
(rgloss)
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14645882-n:
a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium
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Glosses
(rgloss)
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14651212-n:
a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
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Glosses
(rgloss)
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14651479-n:
a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
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Glosses
(rgloss)
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14653596-n:
a grey lustrous metallic element of the rare earth group; is used in special alloys; occurs in monazite and bastnasite
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Glosses
(rgloss)
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14653831-n:
a white trivalent metallic element; sometimes classified in the rare earth group; occurs in the Scandinavian mineral thortveitite
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Glosses
(rgloss)
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14657566-n:
a metallic element of the rare earth group; used in lasers; occurs in apatite and monazite and xenotime and ytterbite
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Glosses
(rgloss)
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14658546-n:
a soft silvery metallic element of the rare earth group; isotope 170 emits X-rays and is used in small portable X-ray machines; it occurs in monazite and apatite and xenotime
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Glosses
(rgloss)
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14661482-n:
a soft silvery metallic element; a rare earth of the lanthanide series; it occurs in gadolinite and monazite and xenotime
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Glosses
(rgloss)
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14668065-n:
a yellow-to-brown mineral that is a source of rare earth elements
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Glosses
(rgloss)
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14675569-n:
a mineral that is a source of rare earths; consists of silicates of iron and beryllium and cerium and yttrium and erbium
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Glosses
(rgloss)
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14682642-n:
a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium
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