| Acronym | Meaning |
| NATICH | National Air Toxics Information Clearinghouse |
| NPIRS | National Pesticide Information Retrieval System |
| GECSC | Generalized Exponential Cosine Screened Coulomb (potential) |
| AMPD | AMP Deaminase |
| NCRPM | National Council On Radiation Protection And Measurements |
| VAFTAD | Volcanic Ash Forecast Transport And Dispersion |
| ACATS | Airborne Chromatograph For Atmospheric Trace Species |
| DIC | Dissolved Inorganic Carbon |
| FABMS | Fast Atom Bombardment Mass Spectrometry |
| NAME | Nuclear Accident Modeling Exercise [a Model] |