| Acronym | Meaning |
| DDRP | Direct Delayed Response Program (for Long Term Effects Of Acid Rain) |
| BA + P | Best Atom + Polarization Function |
| GWM | Groundwater Monitoring |
| DDLS | Depolarized Dynamic Light Scattering |
| CPIMA | Center On Polymer Interfaces And Macromolecular Assemblies |
| GLS | Generalized Least Squares |
| CWF | Coal-water Fuel |
| MSA | Many-trajectory Semiclassical Approxn. (in At.-collision Theory) |
| SOP | Second-order Potential (method For Positron-atom Scattering) |
| DHF | Decoupled Hartree-Fock |