| Acronym | Meaning |
| CLS | Classical Least-squares |
| ESTEMI | Energy Selected Transmission Electron Microscopy Imaging |
| ATR | Attenuated Total Reflectance |
| FAS | Federation Of American Scientists |
| VQP | Variable Quadratic Propagator (in Quantum Calcns.) |
| HEDG | High Efficiency Deep Grinding |
| HAEC | Human Artificial Episomal Chromosome |
| RTU | Remote Terminal Unit |
| COIL | Chem. Oxygen-iodine Laser |
| CPA | Chirped Pulse Amplification |