| Acronym | Meaning |
| GRWA | Generalized Rotating-wave Approxn. (in Energy Level Calcns.) |
| CXC | Chandra X-ray Center |
| EBR | Experimental Breeder Reactor |
| GWPS | Groundwater Protection Strategy |
| EGW | Electrogas Welding |
| DOD | Deutsches Ozeanographisches Datenzentrum |
| PCT | Photoinduced Charge Transfer |
| SMOGSTOP | Statistical Model Of Ground-level Short Term Ozone Pollution |
| ASW | Amorphous Solid Water |
| HMG | High Mobility Group |