| Acronym | Meaning |
| ARPA | Augmented Random Phase Approximation |
| ACEMS | Angular Conversion Electron Moessbauer Spectroscopy |
| UHT | Ultra High Temperature |
| TSD | Treatment, Storage, Or Disposal |
| NIDDM | Non-insulin-dependent Diabetes Mellitus |
| VU-CC | Valence Universal-coupled Cluster |
| QPEN | Quantum-mech. Potential (based On Interactios Of) Electrons (and) Nuclei |
| EICVOM | Equivalent Ionic Core Virtual Orbital Model |
| CAS-SI | Complete Active Space-state Interaction |
| TSO | Time Sharing Option |