| Acronym | Meaning |
| ELF | Environmental Load Factor |
| MOM | Maximum Overlap Method |
| PRB | Permeable Reactive Barrier |
| TH | Total Hardness [of Water] |
| EB | Extended Basis (set) |
| SSPM | Scanning Surface Potential Microscopy |
| RER | Rough Endoplasmic Reticulum |
| SGHWR | Steam-generating Heavy Water Reactor |
| NBS | National Bureau Of Standards |
| PRCPTS | Primary Reactor Coolant Pump Trip System |