| Acronym | Meaning |
| NBC | Nuclear, Biological And Chemical |
| OPG | Optical Parametric Generator |
| UHC | Unburned Hydrocarbons |
| ATEM | Analytical Transmission Electron Microscopy |
| PTDS | Photothermal Deflection Spectroscopy |
| SCAG | Southern California Association Of Governments |
| CBDE | Chemical And Biological Defence Establishment |
| EX-MEG | Excited-mixed Exponentially Generated (wave Function) |
| SCC-IEH | Self-consistent Charge-iterative Extended Hueckel |
| MARS | Membrane Anaerobic Reactor System |