| Acronym | Meaning |
| AAR | Accumulation-area Ratio (for Glaciers) |
| IRGL | Interagency Regulatory Liaison Group |
| BBN | Big Bang Nucleosynthesis |
| SXPS | Soft X-ray Photoelectron Spectroscopy |
| HRE | Hormone-responsive Element |
| CADAT | Computer Aided Design And Testing |
| RMP | Restricted Moeller-Plesset |
| PRISM | Power Reactor Innovative Small Module |
| NSCLC | Non-small Cell Lung Cancer |
| FOM | Figure Of Merit |