| Acronym | Meaning |
| PPG | Polypropylene Glycol |
| AAL | Acceptable Ambient Level(s) |
| VLF | Very Low Frequency (radiowaves) |
| TPCF | Two-point Correlation Function |
| CMO | Canonical Molecular Orbital |
| LASA | Lidar Atmospheric Sounder And Altimeter |
| REACCS | Reaction Access System |
| HAI | Histol. Activity Index |
| VCE | Vapor Cloud Explosion |
| GDNF | Glial-derived Neurotrophic Factor |