| Acronym | Meaning |
| VAZC | Vibrationally Adiabatic Zero Curvature (quantum Calcn. Approxn.) |
| ABL | Atmospheric Boundary Layer |
| ELED | Edge-emitting Light Emitting Diode |
| TMIC | Toxic Materials Information Center |
| DOD | Dissolved Oxygen Deficit |
| ACF | Autocorrelation Function |
| CLOT | Carbon Layer Open Tubular (column) |
| CT | Disinfectant Concn. Times The Contact Time |
| DTAB | Dodecyltrimethylammonium Bromide |
| TDC | Top Dead Center |