| Acronym | Meaning |
| MRSPT | Modified Rayleigh-Schroedinger Perturbation Theory |
| BPD | Bronchopulmonary Dysplasia |
| EDCS | Energy Distribution Curve Spectroscopy |
| PVO | Pseudovalence Orbital |
| BSWKB | Broken Supersymmetric Wentzel-Kramers-Brillouin |
| CNDP | Cold Neutron Depth Profiling |
| GIXA | Glancing-incidence X-ray Analysis |
| NIPALS | Nonlinear Iterative Partial Least Squares |
| JFET | Junction Field-effect Transistor |
| PTS | Position-tagged Spectroscopy |