| Acronym | Meaning |
| MSA | Many-trajectory Semiclassical Approxn. (in At.-collision Theory) |
| NEAT | Near Earth Asteroid Tracking |
| STOCSY | Statistical Total Correlation Spectroscopy |
| BASTE | Bay Area Sewage Toxics Emissions |
| FMIR | Frustrated Multiple Internal Reflection |
| REPELS | Reemitted Positron Energy Loss Spectroscopy |
| GUE | Gaussian Unitary Ensemble (of Random Matrixes In Quantum-transport Studies) |
| SLAR | Side Looking Airborne Radar |
| TIGER | Technique For Importing Greater Evolution Resolution In Multidimensional NMR |
| ECMWF | European Center For Medium Range Weather Forecast |