| Abbreviation | Definition |
|---|---|
| PPM | Procedures Per Minute |
| PPQ | Parts Per Quadrillion |
| PPQ | Parts Per Quarter |
| PPQ | Pulses Per Quarter |
| PPS | Packets Per Second |
| PPS | Pages Per Side |
| PPS | Participants Per School |
| PPS | Pixels Per Second |
| PPS | Polygons Per Second |
| PPS | Pulses Per Second |
| PPT | Parts Per Trillion |
| PPU | Pixels Per Unit |
| pr. | pair |
| PRPM | Pedal Revolutions Per Minute |
| PRPM | Per Resident Per Month |
| PS | Per Spring |
| PS | Pico Seconds |
| PSA | Per Screen Average |
| P'sandQ's | Pints and Quarts |
| PSD | Power Spectral Density |