| Acronym | Meaning |
| PAC | Powdered Activated Carbon |
| MCSCO | Multiconfiguration Self-consistent Orbital |
| LTER | Long Term Ecological Research |
| ERPA | Extended Random Phase Approximation |
| LSS | Laser Synchrotron Source |
| GOOMEX | The Gulf Of Mexico Offshore Operations Monitoring Expt. |
| RDF | Refuse Derived Fuel |
| BIOS | British Intelligence Objectives Sub-committee |
| UPW | Ultrapure Water |
| CTC | Control Technology Center |