Praseodymium
//ˌpɹeɪzioʊˈdɪmiəm// noun
noun ·Rare ·Advanced level
Definitions
Noun
- 1 A chemical element (symbol Pr) with an atomic number of 59, a soft, silvery, malleable and ductile rare earth metal, valued for its magnetic, electrical, chemical, and optical properties. uncountable, usually
"But the government also gave MP Materials a decade-long guaranteed price floor for its products, such as the rare earths neodymium-praseodymium, at twice recent market rates (leaving aside the fact prices have soared this week as MP Materials has cut ties with China)."
- 2 a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process wordnet
Example
More examples"But the government also gave MP Materials a decade-long guaranteed price floor for its products, such as the rare earths neodymium-praseodymium, at twice recent market rates (leaving aside the fact prices have soared this week as MP Materials has cut ties with China)."
Etymology
From Ancient Greek πράσιος (prásios, “leek-green”) + didymium.
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.