pr 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
praseodymium; atomic number 59.
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noun a self-governing commonwealth associated with the United States occupying the island of Puerto Rico
Puerto Rico; Porto Rico; Commonwealth of Puerto Rico.
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noun a promotion intended to create goodwill for a person or institution
public relations.
