| Acronym | Meaning |
| SPO | Spin Projection Operator |
| MIS | Management Information System (OSHA) |
| HIRLAM | High Resolution Limited Area Model |
| PAH | Polycyclic Aromatic Hydrocarbon |
| STIG | Steam-injected Gas Turbines |
| NICI | Negative Ion Chemical Ionization (mass Spectrometry) |
| PLY | Photoluminescence Yield |
| TRS | Total Reduced Sulfur |
| LACBED | Large-angle Convergent-beam Electron Diffraction |
| FAMOUS | French-American Mid-Ocean Undersea Study |