1. pr(n = noun.substance) atomic number 59, praseodymium - a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process; Array
is a kind of metal, metallic element
2. pr(n = noun.location) commonwealth of puerto rico, porto rico, puerto rico - a self-governing commonwealth associated with the United States occupying the island of Puerto Rico; Array
is a kind of commonwealth
is a part of caribbean, greater antilles
has parts: porto rico, puerto rico, san juan, culebra, vieques
3. pr(n = noun.communication) public relations - a promotion intended to create goodwill for a person or institution; Array
is a kind of packaging, promotion, promotional material, publicity
pr, abbr.
1 public relations.
2 proportional representation.
3 US Puerto Rico.
pr, symb. Chem. the element praseodymium.