| Acronym | Meaning |
| 4WM | Four Wave Mixing |
| PNC | Parity Nonconservation |
| IRES | Infrared Emission Spectroscopy |
| MOBK | Modified Oppenheimer-Brinkman-Kramers (approxn. In Calcns. On Atomic And Molecular Collisions With Ions) |
| PIXIE | Polar Ionospheric X-ray Imaging Experiment |
| BGO | Bismuth Germanium Oxide |
| SABRE | Sweden And Britain Radar Experiment |
| ADMRO | Angular Dependent Magnetoresistance Oscillation |
| SEE | Space Environment And Effects |
| MNDO/H | MNDO For H-bonded Systems |