| Acronym | Meaning |
| PMS | Particle Measuring Systems |
| SCMS | Software Configuration Management Section |
| IRCTR | International Research Centre For Telecommunication-transmission And RADAR |
| NPOP | NASA Polar Orbiting Platform |
| IBRD | International Bank For Reconstruction And Development |
| ICN | International Communications Network |
| FMIT | Fusion Materials Irradiation Test Facility |
| NSFNET | National Science Foundation Network |
| NACOA | National Advisory Committee On Oceans And Atmosphere |
| NNMI | Nonlinear Normal Mode Initialization Software |