praseodymium

noun

pra·​seo·​dym·​i·​um ˌprā-zē-ō-ˈdi-mē-əm How to pronounce praseodymium (audio)
ˌprā-sē-
: a yellowish-white metallic element of the rare-earth group used especially in alloys and in the form of its salts in coloring glass greenish yellow see Chemical Elements Table

Examples of praseodymium in a Sentence

Recent Examples on the Web
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These include gold, zinc, copper and lithium, but also rare earth deposits, including dysprosium, terbium, neodymium and praseodymium, which are used in everything from electric cars and wind turbines to high-speed computing. Tom Page, CNN Money, 23 Jan. 2026 In electric cars specifically, neodymium, dysprosium, and praseodymium are primarily used in the powerful permanent magnets inside the motors that drive EVs. Abhimanyu Ghoshal, New Atlas, 24 Nov. 2025 For one, the agreement covers mainly neodymium and praseodymium, which are only two of the 17 rare-earth elements. Eva Roytburg, Fortune, 18 Nov. 2025 American Resources Corporation is a pioneer in extracting and refining rare earth elements—like neodymium, praseodymium, and dysprosium—from recycled materials. Lyssanoel Frater, USA Today, 22 Aug. 2025 See All Example Sentences for praseodymium

Word History

Etymology

New Latin, alteration of praseodidymium, irregular from Greek prasios, adjective + New Latin didymium didymium

First Known Use

1885, in the meaning defined above

Time Traveler
The first known use of praseodymium was in 1885

Browse Nearby Words

Cite this Entry

“Praseodymium.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/praseodymium. Accessed 13 Feb. 2026.

Kids Definition

praseodymium

noun
pra·​seo·​dym·​i·​um ˌprā-zē-ō-ˈdim-ē-əm How to pronounce praseodymium (audio)
: a yellowish white metallic element used especially in alloys and in coloring glass greenish yellow see element

Medical Definition

praseodymium

noun
pra·​seo·​dym·​i·​um ˌprā-zē-ō-ˈdim-ē-əm How to pronounce praseodymium (audio) ˌprā-sē- How to pronounce praseodymium (audio)
: a yellowish white trivalent metallic element of the rare-earth group
symbol Pr
see Chemical Elements Table

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