| Acronym | Meaning |
| IFAS | Integrated Fixed-film Activated Sludge |
| APCE | Air Pollution Control Equipment |
| FGSE | Field-gradient Spin-echo |
| GRK | G Protein Coupled Receptor Kinase |
| AAGP | Aerobic Attached Growth Process |
| CAPS | 3-(cyclohexylamino)-1-propanesulfonic Acid |
| ICLAS | Intracavity Laser Absorption Spectroscopy |
| FIRST | Faint Images Of The Radio Sky At Twenty Centimeters |
| LASS | Laser-assisted Spark Spectroscopy |
| PDS | Photothermal Deflection Spectroscopy |