| Acronym | Meaning |
| IRFPA | IR Focal Plane Array |
| SSF | Slow Sand Filtration (water Treatment) |
| FTU | Formazine Turbidity Unit |
| TAN | Total Acid Number |
| NEBLA | Non-equilibrium Boundary Layer Analysis |
| SQRD | Square Root Darwin Term (correction To T And V Operator) |
| AIR RISC | Air Risk Information Support Center |
| CCMP | Capacitively Coupled Microwave Plasma |
| MP2-R12 | MP2 Theory With Terms Linear In Interelectronic Distance (r12) |
| USCM | Unified Solvation Cavity Model |