| Acronym | Meaning |
| ND | Nitrification Denitrification |
| TCDW1 | Target Continuum Distorted-wave 1st-order (for At. Collisions) |
| GLWQA | Great Lakes Water Quality Agreement |
| SOM | Soil Organic Matter |
| MCE | Microchip Electrophoresis |
| MEPSAG | Minimum Energy Path Semiclassical Adiabatic Ground-state (tunneling Approxn.) |
| AMOS | Air Management Oversight System |
| SWAP | Solid Waste Assistance Program |
| QPLDA | Quasiparticle Local-density Approxn. |
| MGSA | Melanoma Growth Stimulatory Activity |