| Acronym | Meaning |
| EGO | Exhaust Gas Oxygen |
| MNDO | Modified Neglect Of Differential Overlap |
| SFF | Solid Freeform Fabrication |
| SAP | Scientific Advisory Panel (FIFRA) |
| STEL | Short Term Exposure Limit |
| MRISSA | Municipal Refuse Incineration System Simulation And Analysis Model |
| NAPIS | National Agricultural Pest Information System |
| LEACH | Leaching Evaluation Of Agricultural Chemicals |
| 2DEG | Two-dimensional Electron Gas |
| CONTOUR | Comet Nucleus Tour |