| Acronym | Meaning |
| DIPSI | Direct Implicit Plasma Surface Interactions (computer Program) |
| UARS | Upper Atmosphere Research Satellite |
| DNA | Deoxyribonucleic Acid |
| DNR | Department Of Natural Resources |
| ATS | Applied Technology Satellite |
| AIAA | American Institute Of Aeronautics And Astronautics |
| HSC | Health And Safety Commission (UK) |
| PEM | Pacific Exploratory Measurements |
| CEPA-SD | Coupled-electron-pair Approxn. (with) Single (and) Double Excitations |
| CPESA | Coincidence-enhanced Proton Elastic Scattering Analysis |