praseodymium

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

noun

, Chemistry.

1. a rare-earth, metallic, trivalent element, named from its green salts. : Pr; : 140.91; : 59; : 6.77 at 20°C.

praseodymium

/ ˌpreɪzɪəʊˈdɪmɪəm /

noun

1. 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

praseodymium

/ prā′zē-ō-dĭm′ē-əm /

1. 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.
2. See Periodic Table

Word History and Origins

Origin of praseodymium¹

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

Word History and Origins

Origin of praseodymium¹

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

Example Sentences

These are typically rich in cerium, used in flat screens, and lanthanides, such as praseodymium and neodymium, which go into magnets.

From Reuters

Benchmark Mineral Intelligence, a market data provider, estimates that China refines 89% of the world's neodymium and praseodymium, the key metals for EV magnets, a dominance that by 2028 is expected to dip to 75%.

From Reuters

The 17 elements are: lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium, lutetium, scandium, yttrium.

From Reuters

The Sarfartoq project does not contain elevated levels of uranium, but has high levels of neodymium and praseodymium, two essential elements for rare earth permanent magnets, Hudson has said.

From Reuters

Once virtually unknown outside of geochemistry research, these metals, which include neodymium and praseodymium, as constituents of powerful magnets used in hard drives and computer speakers.

From Salon