| Acronym | Meaning |
| BARF | Best Available Retrofit Facility |
| WWM | Wigner-Weyl-Moyal (formalism In Quantum Mechanics) |
| PTNO | Perturbation Theory Natural Orbital |
| SAPT | Symmetry-adapted Perturbation Theory |
| VPEAD | Valence Photoelectron Angular Distribution |
| SLO | Strictly Localized Orbital |
| HMM | Half Molecule Model (for Electron Scattering By Molecules) |
| CPF | Coupled-pair Functional (CI Method With Energy Functional) |
| RAS | Routine Analytical Services |
| HEEPS | Health And Environmental Effects Profiles |