| Acronym | Meaning |
| GOOS | Global Ocean Observing System (IOC) |
| IAEA | International Atomic Energy Agency |
| PO-MO | Pars Orbital-MO |
| FIE | Flow-injection Extraction |
| GLOMAC | Global Modeling Of Atmospheric Chemistry |
| LOCOS | Local Oxidation Of Silicon |
| OEP | Optimized Effective-potential (quantum Method) |
| CDD | Charge-density Distortion |
| QPF | Quantitative Precipitation Forecasts |
| NACSN | North American Commission On Stratigraphic Nomenclature |