| Acronym | Meaning |
| MPAN | Peroxy Methacrolyl Nitrate |
| NESHAP | National Emission Standards For Hazardous Air Pollutants |
| LCLS | Linac Coherent Light Source |
| AO | Atomic Orbital |
| FMS | Frequency Modulation Spectroscopy |
| CDSI | Committee On The Dissemination Of Scientific Information |
| IHSI | Induction Heating Stress Improvement |
| EIES | Electron Impact Emission Spectroscopy |
| HALOE | Halogen Occultation Experiment |
| SEDRA | Simple Excitation For The Dephasing Of Rotational-echo Amplitudes |