| Acronym | Meaning |
| HRXPS | High Resolution X-ray Photoelectron Spectroscopy |
| DIOS | Direct Iron Ore Smelting |
| BATNEEC | Best Available Technology Not Entailing Excessive Cost |
| SMM | Spin Matrix Mapping |
| CERDA | Coincident Elastic Recoil Detection Analysis |
| ARAT | Avion De Recherche Atmospherique Et Teledetection |
| IMSD | Information Management And Services Division |
| GO | Gaussian Overlap (approxn. In Mol. Calcns.) |
| RA | Remedial Action |
| ATES | Aquifer Thermal Energy Storage |