| Acronym | Meaning |
| UFL | Upper Flammable Limit |
| ECA | Equivalent Core Approximation |
| RAPW | Relativistic Augmented Plane Wave |
| SMART | System Integrated Modular Advanced ReacTor |
| CDIR | Carbon Dioxide Information Repository |
| IMOA | Iterative Maximum Overlap Approximation |
| UNEP | United Nations Environmental Program |
| IABO | International Association Of Biological Oceanography (ICSU) |
| FAST | Fast Atom Sample Tester |
| RFDR | Radiofrequency-driven Dipolar Recoupling |