The meaning of the Acronym PD is...

PD is

• Proportional Derivative
• Parameter Descriptor
• Problem Domain
• Pattern Discovery
• Projective Dimension
• Partial Derivative
• Prisoner's Dilemma

More Meanings For PD:

• Pen Down
• Pure Data
• Public Domain
• Printer Driver
• Power Driver
• Physical Device
• Power Down
• Projector Data
• Parallel Decode
• Platform Dependent
• Path Difference
• Pine Download
• Protocol Discriminator
• Pretty Disappointing
• Participatory Design

PD is also in:

• Architecture
• Assembly
• Chat
• Databases
• General
• Hardware
• Security
• Software
• Telecom