The meaning of the Acronym PR is...

PR is

• Progesterone Receptor
• Pathogen Resistant

More Meanings For PR:

• Bitmap graphics (Sun raster file)
• Public Read
• Page Rank
• Perfect Resource
• Password Recovery
• Perfect Resource
• Please Retry
• prepare (for printing)
• Posting References
• Praseodymium
• Pressure Reference
• Praseodymium
• PlaRock
• Power Reference
• PRobability

PR is also in:

• Chat
• Chemistry
• Electronics
• File Extensions
• General
• Mathematics
• Networking
• Security
• Software
• Telecom
• Unix Commands