WordNet (r) 3.0 (2006):

Pr
    n 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 [syn: praseodymium,
         Pr, atomic number 59]
    2: a self-governing commonwealth associated with the United
       States occupying the island of Puerto Rico [syn: Puerto
       Rico, Porto Rico, Commonwealth of Puerto Rico, PR]
    3: a promotion intended to create goodwill for a person or
       institution [syn: public relations, PR]

The Free On-line Dictionary of Computing (19 January 2023):

PR

   Packet Radio


The Free On-line Dictionary of Computing (19 January 2023):

pr

    The country code for Puerto Rico.

   (1999-01-27)