| Acronym | Meaning |
| DWPO | Distorted Wave Polarized Orbital |
| CAWG | Clean Air Working Group |
| HPCA | Hierarchical Principal Component Analysis |
| SCF2 | Two-electron Self-consistent Field |
| ALD | Atomic Layer Deposition |
| CCSD | Coupled Cluster With Single And Double Excitation |
| LAWS | Laser Atmospheric Wind Sounder (NASA) |
| FONDA | First-order Nondegenerate Adiabatic (theory For Electron-mol. Inelastic Scattering) |
| TRI-US | Toxic Release Inventory-User Support |
| EMAT | Effluent Microtox Acute Toxicity |