| Acronym | Meaning |
| PHF-OCE | Perturbative Hartree-Fock One-center Expansion |
| ESCPM | Electrochemical Scanning Probe Microscopy |
| ACERC | Advanced Combustion Engineering Research Center |
| EGW | Electrogas Welding |
| CPF | Coupled-pair Functional (CI Method With Energy Functional) |
| TSD | Treatment, Storage, Or Disposal |
| FK | Fish Kill (file Within STORET) |
| EHP | Electron-hole Potential Method |
| GVFF | Generalized Valence Force Field |
| CRC | Combined Residual Chlorine |