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1. 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

1. A self-governing commonwealth associated with the United States occupying the island of Puerto Rico
   - Puerto Rico, Porto Rico, Commonwealth of Puerto Rico
    
2. Representation of all parties in proportion to their popular vote
   - proportional representation
    
3. A promotion intended to create goodwill for a person or institution
   - public relations

Type of: commonwealth, metal, metallic element, packaging, promo [informal], promotion, promotional material, publicity, representation

Part of: bastnaesite, bastnasite, Caribbean, Greater Antilles, monazite

Encyclopedia: Pr