| Acronym | Meaning |
| ETO | Exponential-type Orbital |
| BHMA | British Hard Metal Association |
| STBF | Slater-type Basis Function |
| SF-PNM | Step Function Perturbative Numerical Method |
| RD | Remedial Design |
| BTEX | Benzene, Toluene, Ethyl Benzene, And Xylene |
| MP3 | Moeller-Plesset Third-order Perturbation Theory |
| PCR | Principal Component Regression |
| EOD | Engineering Operations Division |
| FCI | Fuel Coolant Interaction |