| Acronym | Meaning |
| DBL | Diffusive Boundary Layer |
| DWE | Distorted-wave (approxn. With) Exchange |
| ITMS | Ion Trap Mass Spectrometer |
| RPIPC | Reversed-phase Ion-pair Chromatography |
| OBD | Optical Beam Deflection |
| SDG | Signed Directed Graph (model) |
| ATSR | Along-Track Scanning Radiometer |
| EK | Extended Koopmans (method In Ionization Potential Calcns.) |
| USW | Ultrasonic Welding |
| TURA | Toxics Use Reduction Act 1989 |