| Acronym | Meaning |
| TSPA | Total System Performance Assessment |
| CAA | Clean Air Act Of 1970 |
| CIDA | Cometary Impact Dust Analyzer |
| GOMOS | Global Ozone Monitoring By Occultation Of Stars |
| ETS | Electron Transport System |
| MDS | Metastable Deexcitation Spectroscopy |
| LAICP | Laser Ablation Inductively Coupled Plasma |
| FFV | Flexible Fuel Vehicle |
| SPE | Solid Polymer Electrolyte |
| SRASE | Symmetry Restricted Annihilation Of Single Excitations |