| Acronym | Meaning |
| RXES | Resonant X-ray Emission Spectra |
| MPPSIRD | Mass Peak Profiling From Selected Ion Recording Data |
| MCQDA | Multichannel Quantum Defect Analysis |
| PSHF | Pseudospectral Hartree-Fock |
| IPG | Immobilized PH Gradient |
| ERL | Environmental Research Laboratory |
| FALS | Familial Amyotrophic Lateral Sclerosis |
| ORS | Odds Ratios |
| APWP | Apparent Polar Wander Path |
| AVLIS | Atomic Vapor Laser Isotope Separation |