| Acronym | Meaning |
| NESHAPS | National Emission Standards For Hazardous Air Pollutants |
| HSA | Hyperspherical Adiabatic (for Resonances In Electron-atom Scattering. Energy Levels |
| ARDS | Acute Respiratory Distress Syndrome |
| FILDA | Fluorescence Intensity And Lifetime Distribution Analysis |
| CNLS | Complex Nonlinear Least Squares (data Fitting Method) |
| IGCC | Integrated Gasification Combined Cycles (electric Power Generation Technology) |
| NEPP | National Energy Policy Plan |
| RMF | Rotating Morse Function (in Potential-surface Calcn.) |
| MAD | Multiwavelength Anomalous Diffraction |
| LTR | Long Terminal Repeat |