| Acronym | Meaning |
| ESEDD | Excited State Electron Density Differential Method |
| FCA | Fuzzy Cluster Analysis |
| RMT | Random Matrix Theory |
| MTJ | Magnetic Tunnel Junction |
| IAC | Immunoaffinity Chromatography |
| UTL | Upper Tolerance Limit |
| DFMFT | Density-functional Mean-field Theory |
| RARE | Rapid Acquisition Relaxation-enhanced |
| IEA | International Energy Agency |
| DLD | Decoupled L-dominant Method (in Inelastic-scattering Calcns. |