| Acronym | Meaning |
| ACC | Approximate Coupled Cluster |
| UCHF | Uncoupled Hartree-Fock |
| WHIMS | Wet High Intensity Magnetic Separation |
| ATW | Accelerator Transmutation Of Waste (for Radioactive Waste) |
| ADI | Acceptable Daily Intake |
| IVAP | Intimate Valence Alternation Pairs (bonding Model In Electronic Structure Calcns.) |
| PADRE | Particle Analysis And Data Reduction Program |
| AQCDS | Air Quality Criteria Documents |
| TMA | Thermomagnetic Analysis |
| ABRE | Abscisic Acid-responsive Element |