| Acronym | Meaning |
| PDGFR | Platelet-derived Growth Factor Receptor |
| MSAPC | Mobile Source Air Pollution Control |
| DHF | Decoupled Hartree-Fock |
| PNN | Probabilistic Neural Network |
| GIXA | Glancing-incidence X-ray Analysis |
| LIP | Laser-induced Plasma |
| ODLRO | Off-diagonal Long-range Order |
| RMCSTEP | Repartitioned Multiconfigurational Spin-tensor Electron Propagator |
| AF | Anaerobic Filter |
| TPAD | Temperature-phased Anaerobic Digestion |