| Acronym | Meaning |
| HPOTP | High Pressure Oxidizer Turbopump |
| PTIS | Photothermal Ionization Spectroscopy |
| IAEA | International Atomic Energy Agency |
| CAMD | Computer Aided Material Design |
| LTP | Long-term Potentiation |
| OHS MSDS | Occupational Health Services Material Safety Data Sheets |
| SCIA | Semiclassical Impulse Approxn. |
| FAGS | Federation Of Astronomical And Geophysical Services |
| TIWSLS | Time-independent Wave Packet Schroedinger (and) Lippmann-Schwinger (equation) |
| PRB | Permeable Reactive Barrier |