| Acronym | Meaning |
| HEPES | N-2-hydroxyethylpiperazine-N'-2-ethanesulfonic Acid |
| MEI | Maximally Exposed Individual |
| SCPHP | Self-consistent Particle-hole Propagator |
| CLRTAP | Convention On Long-Range Transboundary Air Pollution |
| B2B | Boundary(-corrected) Second Born (for Scattering) |
| WBGT | Wet Bulb Global Temperature |
| ECID | Electron Capture Induced Decomposition |
| ATAS | Advance Technology Alert System |
| FUGH | FREEON Unitary Group Formulation (of Hartree-Fock Theory) |
| ARIMA | Auto Regressive Integrated Moving Average Model |