praseodymium

[ prey-zee-oh-dim-ee-uhm, prey-see- ]

/ ˌpreɪ zi oʊˈdɪm i əm, ˌpreɪ si- /

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noun Chemistry.

a rare-earth, metallic, trivalent element, named from its green salts. Symbol: Pr; atomic weight: 140.91; atomic number: 59; specific gravity: 6.77 at 20°C.

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Origin of praseodymium

1880–85; <New Latin, equivalent to praseo- (combining form representing Greek prásios leek-green; see prase) + (di)dymium

Words nearby praseodymium

prankster, pranky, prao, Prasad, prase, praseodymium, prat, Pratchett, prate, pratfall, pratincole

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use praseodymium in a sentence

The salts of praseodymium are green in colour, and give a characteristic spark spectrum.
Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 4|Various

British Dictionary definitions for praseodymium

praseodymium

/ (ˌpreɪzɪəʊˈdɪmɪəm) /

noun

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

Word Origin for praseodymium

C20: New Latin, from Greek prasios of a leek-green colour + didymium

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Scientific definitions for praseodymium

praseodymium

[ prā′zē-ō-dĭm′ē-əm ]

A soft, malleable, silvery metallic element of the lanthanide series that develops a green tarnish in air. It is used to add a yellow tint to glass and ceramics and to make the glass used in welding goggles. Atomic number 59; atomic weight 140.908; melting point 935°C; boiling point 3,127°C; specific gravity 6.8; valence 3, 4. See Periodic Table.