| Acronym | Meaning |
| LEP | Local Electron Pair (model For Intra- & Intermol. Interactions) |
| JEIDA | Japan Electronic Industry Development Association |
| SEELFS | Surface Extended-energy-loss Fine-structure |
| DHS | Department Of Health Services |
| INDO/2-HP | INDO/2-hole Potential |
| BCS-CRM | British Chemical Standard-Certified Reference Material |
| IADN | Integrated Atmospheric Deposition Network |
| TCC | Thermofor Catalytic Cracking |
| LDR | Land Disposal Restriction(s) |
| HDT | High-dose Therapy |