| Acronym | Meaning |
| GMO | Generalized Molecular Orbital |
| SPIRIT | Single Photon Ionization Resonance Ionization To Threshold |
| BEST | Basic Extractive Sludge Treatment |
| CCDIS | Charge-coupled Device Imaging Spectrometer |
| MSCV | Murine Stem Cell Virus |
| MNDO | Modified Neglect Of Diatomic Overlap |
| ROSE | Research On Ozone In The Stratosphere And Its Evolution |
| REL | Recommended Exposure Limit(s) |
| STA | Single-transition Approximation |
| CVT | Canonical Variational Transition-state (theory) |