| Acronym | Meaning |
| OPO | Optical Parametric Oscillator |
| PAC | Polycyclic Aromatic Compound |
| TPE | Threshold Photoelectron |
| RMT | Random Matrix Theory |
| PVAC | Poly(vinyl Acetate) |
| EAES | Electron-excited Auger Electron Spectroscopy |
| GUE | Gaussian Unitary Ensemble (of Random Matrixes In Quantum-transport Studies) |
| CDW | Charge-density Wave |
| NIHL | Noise-Induced Hearing Loss |
| SCPA | Self-consistent Phonon Approximation (for Lattice Dynamics Of Quantum Crystals) |