| Abbreviation | Definition |
|---|---|
| PLL | Phase Locked Loop |
| PLL | Plasma Lock Load |
| PLLU | Phase Lock Loop Unit |
| PLTV | Percentage Local Thickness Variation |
| PLVD | Programmable Low Voltage Detection |
| PLY | Photo-Limited Yield |
| PM | Permanent Magnet |
| PM | Phase Modulation |
| PM | Prototype Model |
| PM | Pulse Modulation |
| PMA | Power Matters Alliance |
| PMBT | Port of Mobile Barge Terminal |
| PMC | Process Module Controller |
| PMCC | Pensky-Martens Closed Cup |
| PME | Paramagnetic Meissner Effect |
| PME | Permanent Multiple Earth |
| PMED | Portable Medical Electronic Devices |
| PMEM | Piezoelectric Micro Electro Mechanical |
| PMG | Portable Magnet Generator |
| PMH | Pulse Metal Halide |