| Acronym | Meaning |
| PVN | Paraventricular Nucleus |
| ELEPS | Extended London-Eyring-Polyani-Sato (potential Energy Surface) |
| EDGAR | Electronic Data Gathering |
| ASU | Air Separation Unit |
| EIL | Electron Injection Layer |
| UPS | Uninterrupted Power Systems (for Computer Networks) |
| PETRA | Plasma Engineering And Technology Research Assembly |
| PAGE | Polyacrylamide Gel Electrophoresis |
| RACS | Raw Agricultural Commodities |
| TFA | Thomas-Fermi-Amaldi (equation) |