| Acronym | Meaning |
| TEIL | Two-electron Ionization Ladder (wave Function) |
| APS | Antiphospholipid Syndrome |
| ANG II | Angiotensin II |
| SMBC | Soil Microbial Biomass Carbon |
| CS | Coupled-states (or Centrifugal Sudden) Approximation |
| NMRI | Nuclear Magnetic Resonance Imaging |
| SWV | Square Wave Voltammetry |
| AFB | Anaerobic Fluidized Bed |
| ROHF | Restricted Open-shell Hartree-Fock |
| TOM | Transition Operator Method |