| Acronym | Meaning |
| SLEEM | Scanning Laser-enhanced Electrochemical Microscopy |
| MCM | Multiconfigurational (variation Of) Moments (for Mo Correlation Diagrams Calcn.) |
| DAXRT | Double-axis Reflection X-ray Topography |
| ERLN | Environmental Research Laboratory Narragansett |
| PMR | Proportional Mortality Ratio |
| PDR | Photon-dominated Region |
| CIDA | Cometary Impact Dust Analyzer |
| STAPPA | State And Territorial Air Pollution Program Administrators |
| CMP | Chemical Measurement Process |
| GA | Glauber Approximation (in Electron-atom Scattering) |