| Acronym | Meaning |
| SPIRIT | Spatial IR Imaging Telescope |
| LSS | Laboratory Safety System |
| SMSX(ALPHA) | Overlapping-sphere Multiple-scattering X(alpha) |
| PRPP | Phosphoribosyl Pyrophosphate |
| EUMAC | European Modeling Of Atmospheric Constituents |
| NAEP | National Association Of Environmental Professionals |
| FMOS | Flavin-containing Monooxygenases |
| LOC | Level Of Concern |
| MSAPC | Mobile Source Air Pollution Control |
| LTP | Lipid-transfer Protein |