| Acronym | Meaning |
| MEDLA | Molecular Electron Density Lego Assembler |
| IE | Ion Exchange |
| ALICE | Adiabatic Low-energy Injection And Confinement Experiment |
| TPY | Total Photon Yield |
| IUE | International Ultraviolet Explorer |
| EIRFT | Extended Inversion-recovery Fourier Transform |
| SOS | Surfaces Of Section Method (semiclassical Calcn. Of Eigenvalues) |
| CEM | Conventional Electron Microscope |
| OAR | Office Of Air And Radiation (USEPA) |
| TMWAM | Turkey-Mersey Watershed Acidification Model |