| Acronym | Meaning |
| PPES | Photopyroelectric Spectroscopy |
| SBTT | Small Business Technology Transfer |
| DVR | Discrete Variable Representation (in Wave Function Calcn.) |
| ISCI | Initial-state Configuration Interaction |
| EMEA | European Medicines Evaluation Agency |
| SAMPEX | Solar Anomalous And Magnetospheric Particle Explorer (spacecraft) |
| SWRRB | Simulation For Water Resources In Rural Basins |
| NGL | Natural Gas Liquid (usually Ethane Or Propane) |
| SLBO | Strictly Localized Bond Orbital |
| ICON | International Council On Nanotechnology |