| Acronym | Meaning |
| MECA | Multiple Excitation Collisional Activation |
| SAXS | Small Angle X-ray Scattering |
| NICE | Neutral Interstellar Composition Experiment |
| ASTER | Acceptable Short-term Exposure Range |
| MAB | Molecular Aharonov-Bohm (electronic-structure Effect) |
| COMFET | Conductivity-modulated Field Effect Transistor |
| WRC | Water Resources Council |
| MSS | Multispectral Scanner |
| ARF | ADP-ribosylation Factor |
| SASU | Source Apportionment |