| Acronym | Meaning |
| RADW | Rotationally-adiabatic Distorted-wave |
| IP | Impact Parameter Approximation |
| NRO | Natural Reaction Orbital |
| RSCA | Relativistic Semiclassical Approximation (for At. Scattering) |
| WWSCOT | Whisker Wall Support Coated Open Tubular Column |
| EDXS | Energy-dispersive X-ray Spectroscopy |
| ISIS | Image-selected In Vivo Spectroscopy |
| CID | Configuration Interaction With Double Substitution |
| LAAS | Laser Atomic Absorption Spectrometry |
| CRAF | Comet Rendezvous Asteroid Flyby |