| Acronym | Meaning |
| CNO | Constrained Nonorthogonal Orbital (algorithm) |
| IRSID | French Research Institute Of Siderurgy |
| NGST | Next Generation Space Telescope |
| HEDG | High Efficiency Deep Grinding |
| HRMSI | High-Resolution Multispectral Instrument (EOS) |
| EEXAPS | Electron Excited X-ray Appearance Potential Spectroscopy |
| FACS | Fluorescence-activated Cell Sorting |
| VFF | Valence Force Field (in Electronic-structure Calcns.) |
| NLS | Nuclear Localization Signal |
| CVD | Chemical Vapor Deposition |