| Acronym | Meaning |
| PNP | Purine Nucleoside Phosphorylase |
| FFITP | Free-flow Isotachophoresis |
| DISC | Death-inducing Signaling Complex |
| ECTFP | Empty-core Thomas-Fermi Pseudopotential |
| BARITT | Barrier Injection Transient Time |
| ATMS | Assumption-based Truth Maintenance System |
| BCUT | Burden CAS And University Of Texas |
| ARCS | Alternative Remedial Contracting Strategy (US EPA) |
| AHU | Air Handling Unit |
| VCCPB | Variable-charge Coulomb-projected Born (approxn. For Electron-atom Scattering) |