A soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process.

synoniemen: atomic number 59, praseodymium.

Nederlands: praseodymium
Pools: prazeodym, Pr

A self-governing commonwealth associated with the United States occupying the island of Puerto Rico.

synoniemen: Commonwealth of Puerto Rico, Porto Rico, Puerto Rico.

Nederlands: Puerto Rico
Pools: Puerto Rico, Portoryko, Stowarzyszone Wolne Państwo Portoryko, Wspólnota Portoryka

A promotion intended to create goodwill for a person or institution.

synoniem: public relations.

Nederlands: pr, public relations
Pools: pijar, PR, public relations, wizerunek publiczny