| Acronym | Meaning |
| TOMS | Total Ozone Mapping Spectrometer |
| ASTM | American Society For Testing Materials |
| ESO | European Southern Observatory |
| CDC | Centers For Disease Control |
| LDS | Linear Depolarization Ratio |
| WMS | World Magnetic Survey |
| ESM | Earth Systems Model |
| M&S | Materials And Services |
| ARAC | Atmospheric Release Advisory Capability |
| CCIT | Comite Consultatife International De Telephonique Et Telegraphique |