| Acronym | Meaning |
| OFR | Oxygen Free Radical |
| NPAR | Nonbinding Preliminary Allocation Of Responsibility |
| CCD | Charge Coupled Device |
| CAE | Constant Analyzer Energy |
| HCDW | Hydrogenic Continuum Distorted Wave (a Wave Function In Calcns. On Atomic And Molecular Collisions) |
| TCS | Total Current Spectroscopy |
| SLIME | Spin-locked Inversion Mid-echo |
| SQF | Second-quantized Formulation (in Many-body Quantum Theory) |
| MCEP | Multiconfigurational Electron Propagator (in Ionization Potential Calcns.) |
| GINC | Global Information Network On Chemicals |