| Acronym | Meaning |
| HEV | Hepatitis E Virus |
| DLPCB | Dioxin-like Polychlorinated Biphenyl |
| OVC | Optimized Valence Configuration |
| RDA | Representational Difference Analysis |
| MGVB | Modified Generalized Valence Bond |
| CSRO | Chemical Short-range Order |
| IGCAR | Indira Gandhi Center Atomic Research |
| IGAIM | Individual Gages (for) Atoms In Molecules |
| AEFCA | All-electron Frozen-core Approximation |
| ACS | Adiabatically Corrected Sudden |