| Acronym | Meaning |
| CASSCF-CCI | Complete Active Space Self-consistent Field-contracted CI |
| PAB | Pollutant Assessment Branch (US EPA) |
| HSCT | Hematopoietic Stem Cell Transplantation |
| AQCCT | Air Quality Criteria And Control Techniques |
| MSX | Midcourse Space Experiment |
| SBD | Schottky-barrier Diode |
| BIXS | Beta-ray Induced X-ray Spectrometry |
| BMP | Biochemical Methane Potential |
| PVDF | Polyvinylidene Difluoride |
| BNN | Back-propagation Neural Network |