| Acronym | Meaning |
| MTBF | Mean Time Between Failure |
| TIAA | Teachers Insurance And Annuity Association |
| L | Lunar |
| GLRS | Geodynamics (or Geoscience) Laser Ranging System |
| NASN | NASN Cascade Impacter In Aerosol Studies |
| MEF | Master E-mail Facility |
| GEOSAT | Geodesy Satellite |
| MISR | Multiangle Imaging Spectroradiometer |
| IWGGCDM | International Working Group On Global Change And Data Management |
| FMS | French Meteorological Society |