| Acronym | Meaning |
| CPVC | Chlorinated Polyvinyl Chloride |
| DIN | Dissolved Inorganic Nitrogen |
| ASE | Augmented Secular Equation |
| CMU | Condition Monitoring Unit |
| EK | Extended Koopmans (method In Ionization Potential Calcns.) |
| AADO | Angular (momentum Conservation) Average Dipole Orientation Theory (in Io-mol. Reactions) |
| NAPCA | National Air Pollution Control Administration |
| VDRE | Vitamin D-responsive Element |
| ROI | Reactive Oxygen Intermediate |
| PIRAS | Polarized Infrared Absorption Spectroscopy |