This is the Valar Atomics defined abbreviaiton list.
| Word | Part of Speech | Approved meaning / linked definiton (abbreviation) |
|---|---|---|
| PPA | abbreviation | Power Purchase Agreement |
| ppm | abbreviation | parts per million |
| Pr | abbreviation | Prandtl number of fluid |
| PR | abbreviation | Pressure Ratio |
| PRA | abbreviation | Probabilistic Risk Assessment |
| PRS | abbreviation | Protection Requirements Specification |
| PRS | abbreviation | Pressure Release System |
| PSA | abbreviation | Probabilistic Safety Assessment |
| PSA | abbreviation | Probabilistic Safety Assessment |
| PSAR | abbreviation | Preliminary Safety Analysis Report |
Total entries: 440