| Acronym | Meaning |
| CTBTO | Comprehensive Nuclear-Test-Ban Treaty Organization |
| ISEC | Inverse Size-exclusion Chromatography |
| BHT | Bottom-hole Temperature |
| PREELS | Position-resolved Electron Energy Loss Spectroscopy |
| DMBE | Double Many-body Expansion (in Potential Energy Surface Calcn.) |
| BPC | Blood Platelet Count |
| HDPE | High-density Polyethylene |
| WCAT | Water-cooled Atom Trap |
| ZPL | Zero-phonon Line |
| PSSCF | Pseudo SCF |