| Acronym | Meaning |
| CADW | Converged-adiabatic Distorted-wave (quantum Calcn. Method) |
| LCFA | Long Chain Fatty Acid(s) |
| NWC | National Water Council (UK) |
| AWJ | Abrasive Waterjet |
| CTEQ | The Coordinated Theoretical-Experimental Project On QCD |
| ELNES | Electron Energy-loss Near Edge Structure |
| STODI | Slater-type Orbital-point Dipole Interaction (in Mol. Polarizability Calcns.) |
| EBO | Equivalent Bond Orbital |
| VPSEM | Variable Pressure Scanning Electron Microscope |
| ACL | Alternative Concentration Limit |