| Acronym | Meaning |
| UVPS | Ultraviolet Photoelectron Spectroscopy |
| HVEM | High-voltage Electron Microscopy |
| NDR | Neg. Differential Resistance |
| SLMO | Symmetry-adapted Localized Molecular Orbital |
| IGS | Intergenic Spacer |
| MCS | Management Control System |
| HCS | Heliospheric Current Sheet |
| APT | Analytic Perturbation Theory |
| CFTR | Cystic Fibrosis Transmembrane Conductance Regulator |
| LEPD | Low-Energy Positron Diffraction |