| Acronym | Meaning |
| PAC | Polyaluminum Chloride |
| LGL | Large Granular Lymphocyte |
| ISCI | Initial-state Configuration Interaction |
| AADO | Angular (momentum Conservation) Average Dipole Orientation Theory (in Io-mol. Reactions) |
| FIOR | Fluid Iron Ore Reduction |
| IGCC | Integrated Gasification Combined Cycles (electric Power Generation Technology) |
| CCSD(T) | Coupled-cluster (with) Single (and) Double (and Perturbative) Triple (excitations) |
| ECAE | Equal Channel Angular Extrusion |
| SFRI | Sludge Filtration Resistance Index |
| CIDEP | Chemically Induced Dynamic Electron Polarization |