| Acronym | Meaning |
| SIMBA | Selective Inverse Multiple Bond Analysis |
| TDHG | Time-dependent Hartree Grid (quantum Method) |
| OSRSCF | Open-shell Restricted SCF |
| CARPT | Computer Automated Radioactive Particle Tracking |
| CNDO/B | Complete Neglect Of Differential Overlap / Boyd |
| MORBID | Morse Oscillator-rigid Bender Internal Dynamics (hamiltonianin Rotational-vibrational Energy Levels Calcn.) |
| PSS | Primary Sewage Sludge |
| SOA | Semiconductor Optical Amplifier |
| PTGS | Post-transcriptional Gene Silencing |
| DFAA | Dissolved Free Amino Acids |