| Acronym | Meaning |
| RIDA | Reverse Isotope Dilution Analysis |
| EDL | Electroless Discharge Lamp |
| MZDO | Modified Zero Differential Overlap |
| CNDO/S | Complete Neglect Of Differential Overlap/spectroscopic |
| MNDO/M | Modified MNDO |
| VFB | Flat-band Voltage |
| MPC | Model Predictive Control |
| UNEP | United Nations Environmental Program |
| CICAD | Concise International Chemical Assessment Documents |
| PEMC | Pair-excitation Multiconfiguration (type Of Wave Function) |