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n. Symbol Nd
A bright, silvery, reactive element of the lanthanide series, found in the minerals monazite and bastnaesite and used for coloring glass, for doping laser glass and crystals, and in materials with strong, permanent magnetic properties that make them useful for computer and audio equipment. Atomic number 60; atomic weight 144.24; melting point 1,016°C; boiling point 3,074°C; specific gravity 7.008; valence 3. See Periodic Table.
[German Neodym : neo-, neo- + -dym, didymium.]
(Elements & Compounds) 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
[C19: New Latin; see neo- + didymium]
ne•o•dym•i•um(ˌni oʊˈdɪm i əm)
a rare-earth metallic trivalent element occurring with cerium and other rare-earth metals, and having rose-colored salts. Symbol: Nd; at. wt.: 144.24; at. no.: 60; sp. gr.: 6.9 at 20°C.
Symbol Nd A shiny, silvery metallic element of the lanthanide series that exists in two forms. It is used to make glass for welders' goggles and purple glass for lasers. Atomic number 60. See Periodic Table.
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|Noun||1.||neodymium - a yellow trivalent metallic element of the rare earth group; occurs in monazite and bastnasite in association with cerium and lanthanum and praseodymium|
metal, metallic element - any of several chemical elements that are usually shiny solids that conduct heat or electricity and can be formed into sheets etc.
monazite - a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium