| Acronym | Meaning |
| GMDH | Group Method Of Data Handling |
| QUE | Quantized Universal Enveloping (algebras In Mol. Vibrational Spectra Calcns.) |
| POGO | Polar Orbiting Geophysical Observatory |
| BGC | Biogeochemical Cycling |
| LRMS | Low Resolution Mass Spectrometry |
| LRTAP | Long-range Transboundary Air Pollution |
| MAH | Magic-angle Hopping |
| CAICISS | Coaxial Impact Collision Ion Scattering Spectroscopy |
| HEAT | High-Energy Antimatter Telescope |
| SESMO | Semiempirical Scaled Molecular Orbital |