A soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
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Noun
a promotion intended to create goodwill for a person or institution
Noun
a self-governing commonwealth associated with the United States occupying the island of Puerto Rico
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
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Usage Examples
Misspelled Form
PR, PR, R, PR, PR, P, PR.
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