| Acronym | Meaning |
| RCHF | Relaxed-core Hartree-Fock (approxn. In Calcns. On Mol. K-shell Excitation Spectra) |
| TRIPS | Trade-Related Aspects Of Intellectual Property Rights |
| VEH | Valence Effective Hamiltonian Method (for Electronic Structure) |
| ATF | Automatic Transmission Fluid |
| BASF | Badische Anilin- Und Soda-Fabrik |
| LEIR | Low Energy Ion Ring |
| SSUWP | Single Sided Universal Wet Processor |
| NEVE | Nonempirical Valence Electron Method |
| RHFR | Relativistic Hartree-Fock-Roothaan |
| AFID | Alkali Flame Ionization Detector |