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neodymium
[ nee-oh-dim-ee-uhm ]
noun
, Chemistry.
- a rare-earth, metallic, trivalent element occurring with cerium and other rare-earth metals, and having rose-colored to violet-colored salts. : Nd; : 144.24; : 60; : 6.9 at 20°C.
neodymium
/ ˌniːəʊˈdɪmɪəm /
noun
- a toxic silvery-white metallic element of the lanthanide series, occurring principally in monazite: used in colouring glass. Symbol: Nd; atomic no: 60; atomic wt: 144.24; valency: 3; relative density: 6.80 and 7.00 (depending on allotrope); melting pt: 1024°C; boiling pt: 3127°C
neodymium
/ nē′ō-dĭm′ē-əm /
- A shiny, silvery metallic element of the lanthanide series. It is used to make glass for welders' goggles and purple glass for lasers. Atomic number 60; atomic weight 144.24; melting point 1,024°C; boiling point 3,027°C; specific gravity 6.80 or 7.004 (depending on allotropic form); valence 3.
- See Periodic Table
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Word History and Origins
Origin of neodymium1
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Word History and Origins
Origin of neodymium1
C19: New Latin; see neo- + didymium
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Example Sentences
Not to mention rare elements such as lanthanum, cerium, and neodymium, essential to modern technology and commanding high prices.
From The Daily Beast
Germanium 64 is not at all stable, and neither is Neodymium 128, but the instability can be corrected by positive beta emission.
From Project Gutenberg
Neodymium (Nd) forms the chief portion of the old “didymium.”
From Project Gutenberg
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