| Acronym | Meaning |
| MTA | Message Transfer Agent |
| ASPEA | Association Suisse Pour L'Energie Atomique |
| NET | Noise-equivalent Temperature |
| CBL | Convective Boundary Layer |
| VOR | Visual Omnirange |
| CBT | Computer Based Training |
| IR-RAD | Infrared Radiometer |
| D/A | Digital-to-analogue Conversion |
| GEO | Geosciences Directorate |
| DMAIAGS | Defense Mapping Agency Inter-American Geodetic Survey |