| Acronym | Definition |
|---|
| OSSE➣Oriented Scintillation Spectrometer Experiment |
| OSSE➣Office of the State Superintendent of Education (Washington, DC) |
| OSSE➣Oriented Scintillation Spectrometer Experiment (telescope used at the Gamma Ray Observatory) |
| OSSE➣Office of Space Science Education (Wisconsin) |
| OSSE➣Open Source Software Engineering |
| OSSE➣Observation Simulation System Experiment (US NOAA) |
| OSSE➣Observing Systems Simulation Experiment |
| OSSE➣Operational Safety Suitability and Effectiveness (Air Force Instruction 63-1201) |