| Acronym | Meaning |
| QSO | Quasistellar Objects |
| RAIN | Reactions And Intermediates Network |
| AL:PE | Acidification Of Mountain Lakes: Paleolimnol. And Ecol. |
| ACSH | American Council On Science And Health |
| CI | Compression-ignition (engine) |
| FAMOS | Floating-gate Avalanche-injection Metal-oxide Semiconductor |
| SCBC | Self-consistent Basis And Configuration |
| NIGMS | National Institute Of General Medical Sciences (NIH) |
| IEMP | Integrated Environmental Management Project |
| ESAD | Electron-stimulated Associative Desorption |