| Acronym | Meaning |
| PTM | Perturbation Trajectory Method (in Gas-surface Collision Dynamics) |
| BPDA | 3,3',4,4'-biphenyltetracarboxylic Dianhydride |
| GCW | Groundwater Circulation Well |
| ROG | Reactive Organic Gas |
| BIS | Bispectral Index |
| ATECT | Acetyl Triethyl Citrate |
| CFU | Colony Forming Unit (for Bacteria Counting In Water Disinfection) |
| PMTR | Photomodulated Thermoreflectance |
| HAUP | High Accuracy Universal Polarimeter |
| BAC-MP4 | Bond-additivity-corrected Moeller-Plesset 4th-order Perturbation |