The meaning of the Acronym PM is...

PM is

• Perl Monger
• Party Mode
• Project Mayhem

More Meanings For PM:

• Promethium
• Promethium
• Pulse Modulation
• Phase Modulation
• Permanent Magnet
• Prototype Model
• Power Method
• Polygonal Map
• Pseudo Manifold
• Plus And Minus
• Power Matrix
• Plus or Minus
• Process Manager
• Particulate Matter
• Particle Multiplication

PM is also in:

• Chemistry
• Electronics
• Mathematics
• Ocean Science
• Physics