praseodymium

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pra·se·o·dym·i·um

 (prā′zē-ō-dĭm′ē-əm, prā′sē-)
n. Symbol Pr
A soft, silvery, malleable, ductile element of the lanthanide series that develops a characteristic green tarnish in air. It occurs naturally with other rare-earth elements in the minerals monazite and bastnaesite and is used to color glass and ceramics yellow, as a core material for carbon arcs, and in metallic alloys. Atomic number 59; atomic weight 140.908; melting point 931°C; boiling point 3,520°C; specific gravity 6.773; valence 3, 4. See Periodic Table.

[German Praseodym : Greek praseos, variant of prasios, leek-green (from prason, leek) + German -dym, didymium.]

praseodymium

(ˌpreɪzɪəʊˈdɪmɪəm)
n
(Elements & Compounds) a malleable ductile silvery-white element of the lanthanide series of metals. It occurs principally in monazite and bastnaesite and is used with other rare earths in carbon-arc lights and as a pigment in glass. Symbol: Pr; atomic no: 59; atomic wt: 140.90765; valency: 3; relative density: 6.773; melting pt: 931°C; boiling pt: 3520°C
[C20: New Latin, from Greek prasios of a leek-green colour + didymium]

pra•se•o•dym•i•um

(ˌpreɪ zi oʊˈdɪm i əm, ˌpreɪ si-)

n.
a rare-earth metallic trivalent element, named from its green salts. Symbol: Pr; at. wt.: 140.91; at. no.: 59; sp. gr.: 6.77 at 20°C.
[1880–85; praseo- (comb. form representing Greek prásios leek-green, derivative of práson leek) + (di) dymium]

pra·se·o·dym·i·um

(prā′zē-ō-dĭm′ē-əm)
Symbol Pr A soft, silvery, easily shaped metallic element of the lanthanide series that develops a green tarnish in air. It is used to color glass and ceramics yellow and to make glass used in goggles for welders. Atomic number 59. See Periodic Table.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.praseodymium - a soft yellowish-white trivalent metallic element of the rare earth grouppraseodymium - a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
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.
bastnaesite, bastnasite - a yellow-to-brown mineral that is a source of rare earth elements
monazite - a reddish-brown mineral containing rare earth metals; an important source of thorium and cerium
Translations
празеодим
praseodym
praseodymium
praseodüüm
praseodyymi
praséodyme
praseodimij
prazeodímium
praseódým
プラセオジム
praseodymium
prazeodimis
prazeodym
praseodímio
praseodim
prazeodim
praseodym
praseodim
празеодим

praseodymium

[ˌpreɪzɪəʊˈdɪmɪəm] Npraseodimio m

praseodymium

n (Chem) → Praseodym nt
References in periodicals archive ?
18 (1870) Charles Baskerville--who while director of the chemical laboratories at the City College of New York was credited with the discovery of various anesthetics, carolinium, and berzelium, plus advancements in the methods of refining vegetable oils--was born in Deer Brook, Noxubee County.