praseodymium Meaning, Definition & Usage
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noun a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
Pr; atomic number 59.
WordNet
Pra`se*o*dym"i*um noun
Etymology
Definitions
(Chem.) An elementary substance, one of the constituents of didymium; -- so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.
