| Abbreviation | Definition |
|---|---|
| PICO | Program In Chip Out |
| PICTS | Photo-Induced Current Transient Spectroscopy |
| PID | Process and Instrumentation Drawing |
| PIE | Personal Interactive Electronics |
| PIE | Precision Interface Electronics |
| PIEG | Presque Isle Electric Gas |
| PIFA | Planar Inverted-F Antennas |
| PIII | Plasma Immersion Ion Implantation |
| PIIP | Plasma Immersion Ion Processing |
| PIN | Positive Intrinsic Negative |
| PIND | Particle Impact Noise Detection |
| PIP | Peak Input Power |
| PIP | Process-Induced Particle |
| PIS | Process Interface System |
| PISA | Photovoltaic Information Strategy To Architects |
| PIT | Pressure Indicating Transmitter |
| PIV | Peak Inverse Voltage |
| PIV | Power Inverse Voltage |
| PL | Photo Luminescence |
| PL | Positive Low |