| Acronym | Meaning |
| FEF | Forced Expiratory Flow (lung Function) |
| IUCR | International Union Of Crystallography |
| AEM | Analytical Electron Microscopy |
| ZID | Zone Of Initial Dilution |
| FIAS | Flow Injection Atomic Spectrometry |
| UASB | Upflow Anaerobic Sludge Blanket |
| RBCOD | Readily Biodegradable Chemical Oxygen Demand |
| PLY | Photoluminescence Yield |
| ALAPO | Association Of Local Air Pollution Control Officers |
| ACTI | Advanced Computational Technology Initiative |