| Acronym | Meaning |
| ESIX | Electrically Switched Ion Exchange |
| NBO | Natural Bond Order |
| ZCLV | Zoned Constant Linear Velocity |
| AQM | Acenaphthenequinone Monoxime |
| ARIA | Atm. Response In Aurora |
| SPC | Statistical Process Control |
| RSC | Risk Specific Concentration |
| PFBC-CC | Pressurized Fluidized-bed Combustion/combined Cycle (of Coal) |
| PSMO | Pseudo MO |
| SSIS | Scanning Surface Inspection System |