| Acronym | Meaning |
| SLEEP | Scanning Low Energy Electron Probe |
| PZEV | Partial Zero Emission Vehicle |
| QDWT | Quantum Density-wave Theory (in Theory Of Freezing Of Quantum Systems) |
| OAM | Optical Absorption Microscope |
| RISA | RDNA Internal Spacer Analysis |
| SOEH | Scaled One-electron Hamiltonian (in SCF Calcns. On Mols.) |
| GNMP | Generalized Nonlocal Model Potential |
| ZOAO | Zero Overlap Of Atomic Orbital Approxn. |
| CD | Coulomb Dipole (in Electron-atom Impact Ionization Calcns.) |
| SPDM | Single-particle Density Matrix |