| Acronym | Meaning |
| GOE | Gaussian Orthogonal Ensemble (of Random Matrixes In Quantum Chaoticity Study In At. And Nuclear Energy Levels) |
| NNLO | Next-to-next-to-leading Order |
| APWP | Apparent Polar Wander Path |
| DAS | Double Antibody Sandwich |
| CERL | Corvallis Environmental Research Laboratory |
| AHM | Acutely Hazardous Materials |
| SC-2D | State-correlated Two-dimensional (NMR Spectroscopy) |
| ABR | Auditory Brainstem Response |
| GTF | Gaussian-type (wave) Function |
| UCEPA | Unitary Coupled Electron Pair Approximation |