| Acronym | Meaning |
| SQM | Scaled Quantum Mechanics (in Ab Initio Calcns.) |
| PHF | Periodic Hartree-Fock |
| IILE | Ion-induced Light Emission |
| AWRE | Atomic Weapons Research Establishment |
| IPPC | Integrated Pollution Prevention And Control |
| CPT | Critical Pitting Temperature |
| CSOV | Constrained Space Orbital Variation |
| QRA | Quantitative Risk Assessment |
| ESR | Electroslag Remelting |
| PARAFAC | Parallel Factor Analysis |