| Acronym | Meaning |
| CDE | Collective Dose Equivalent |
| SRAPW | Scalar Relativistic Augmented Plane Wave |
| RSSCT | Rapid Small-scale Column Test (of Granulated Activated Carbon) |
| NETI | National Enforcement Training Institute |
| BIG/GT | Biomass Gasifier/gas Turbine (for Steam/electricity Cogeneration) |
| IWRA | International Water Resources Association (USA) |
| OMNIS | Observatory For Multiflavor Neutrinos From Supernovae |
| HEM | Heat-exchanger Method (in Manuf. Of Crystalline Silicon) |
| CCPS | Center For Chemical Process Safety |
| CCMS | Committee On Challenges Of Modern Society (NATO) |