| Acronym | Definition |
|---|
| SDHE➣San Diego Harbor Excursions (San Diego, CA) |
| SDHE➣Student Development in Higher Education (California State University, Long Beach) |
| SDHE➣School Development in Health Education Project (Australia) |
| SDHE➣Sustainable Development and Healthy Environments (World Health Organization; Switzerland) |
| SDHE➣Spacecraft Data Handling Equipment |