The meaning of the Acronym PI is...

PI is

• Principal Investigator
• Program Introduction
• Procurement Item
• Preliminary Investigation
• Pen and Ink (Document Update)
• Payload Interrogator

More Meanings For PI:

• Plant Introduction
• Phosphate Ion
• Proportional Integral
• Pulse Induction
• Public Inquiry
• Pareto Improved
• 3.141592654
• Principal Investigator
• 3.141592654
• Polarisation Index
• Pengajian Inggeris
• Pre-Invoice
• Priceless Inn
• Patternology International
• Project Idea

PI is also in:

• Accounting
• Botany
• Chemistry
• Electronics
• Firms
• General
• Libraries
• Mathematics
• Ocean Science
• Physics
• Universities