| Acronym | Meaning |
| LGO | Light Gas Oil |
| GSD | Geometric Std. Deviation |
| SHE | Standard Hydrogen Electrode |
| OEIC | Optoelectronic Integrated Circuit |
| MCEB | Multiconfiguration Energy Bound |
| BMP | Best Management Practices |
| HFFR | Halogen-free Flame Retardant [thermoplastics] |
| CP | Chemically Pure |
| WQCDS | Water Quality Criteria Documents |
| IBS | Incomplete Basis Set |