| Acronym | Meaning |
| CCCI | Correlation-consistent CI |
| ABO | Adiabatic Born-Oppenheimer (wave Functions) |
| TBC | Toxicity Based Consent |
| SNG | Synthetic Natural Gas |
| LCAS MS | Linear Combination Of Atomic Spinors-molecular Spinors |
| CEEC | Capillary Electrophoresis/electrochemistry |
| TARC | Tiered Area Response Capability |
| SWMM | Stormwater Management Model |
| LFC | Lowest Feasible Concentration |
| ICTAC | International Confederation For Thermal Analysis And Calorimetry |