| Acronym | Meaning |
| NNI | National Nanotechnology Initiative |
| CGRO | Compton Gamma-Ray Observatory |
| TIPS | Transferable Intermol. Potential Functions |
| ECP | Estimated Critical Position |
| STIS | Space Telescope Imaging Spectrograph |
| BSDF | Bidirectional Scatter Distribution Function |
| UCC(N) | Unitary Coupled-cluster [truncated To Nth Order] |
| ESPI | Electronic Speckle Pattern Interferometry |
| IUGG | International Union Of Geodesy And Geophysics |
| JIMO | Jupiter Icy Moons Orbiter |