| Acronym | Meaning |
| TBNEM | Tight-binding Nearly Free Electron Model |
| RSC | Risk Specific Concentration |
| LGO | Light Gas Oil |
| SCC | Standards Council Of Canada |
| WCRP | World Climate Research Programme |
| CIOS | Complex Infinite Order Sudden (approxn. In Quantum Calcns.) |
| SRE | Serum-responsive Element |
| OMO | Orthogonalized Magnetic Orbital |
| PED | Plasma Emission Detector |
| AEM | Acoustic Emission Monitoring |