| Acronym | Meaning |
| ESMR | Electrically Scanning Microwave Radiometer |
| AFR | Air To Fuel Ratio |
| AFUP | Alternative Fuels Utilization Program |
| GAXRD | Glancing Angle X-ray Diffraction |
| FRSS | Federal Register Search System |
| OIM | Orientation Imaging Microscopy |
| SOA | Secondary Organic Aerosols |
| EOTC | European Organization For Testing And Certification |
| SCR | Solar Cosmic Rays (related To Spacecraft And Space Travel) |
| ESCA | Electron Spectroscopy For Chemical Analysis |