| Acronym | Meaning |
| CPCC | Complex-potential Close-coupling |
| THDM | Translucent Humic Degradation Matter |
| LSC | Liq. Scintillation Counting |
| FAGE | Fluorescence Assay With Gas Expansion |
| SANO | Symmetry-adapted Natural Orbital |
| OFW | Organic Free Water |
| CCFO | Charge-charge Flux Overlap (model In Mol.-property Calcns.) |
| DHF | Derivative Hartree-Fock (quantum Theory In Calcns. On Mols.) |
| ICC | Interstate Commerce Commission |
| HFPD | Hartree-Fock With Proper Dissociation (wave Function) |