| Acronym | Meaning |
| EUV | Extreme Ultraviolet |
| SDIO | Strategic Defense Initiative Organization |
| ANPP | Aboveground Net Primary Production |
| CIWEM | Chartered Institution Of Water And Environmental Management |
| UNITAR | United Nations Institute For Training And Research |
| UFG | Ultrafine Grained |
| RGS | Regulator Of G-protein Signaling |
| CSP | Computational Singular Perturbation (math Modeling Method) |
| ARSCF | Approximate Relativistic SCF |
| AACA | Ambient Atmosphere Conditions And Aging |