PR

Noun	1.	Pr - a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process Synonyms: atomic number 59, praseodymium
	2.	PR - a self-governing commonwealth associated with the United States occupying the island of Puerto Rico Synonyms: Commonwealth of Puerto Rico, Porto Rico, Puerto Rico
	3.	PR - a promotion intended to create goodwill for a person or institution Synonyms: public relations

1.		PR - Packet Radio
2.	(networking)	pr - The country code for Puerto Rico.

P&R - Placement & Routing (RL, IC)atomic number 59, bastnaesite, bastnasite, metal, metallic element, monazite, praseodymium