| Acronym | Meaning |
| IUGG | International Union Of Geodesy And Geophysics |
| MOCED | Molecular Orbital Constrained Electron Diffraction Method |
| FOEA | First-order Eikonal Approximation |
| STP | Sewage Treatment Plant |
| BONUS | Boiling Nuclear Superheat (reactor) |
| CHMO | Constrained Hartree-Fock Orbitals |
| SPEMC-SCF | Selected Paired Excitational Expansion Multiconfiguration-SCF |
| BMD | Bone Mineral Density |
| AOT | Aerosol OT (surfactant) (reg: 577117) |
| IMAPS | International Microelectronics And Packaging Society |