MDEF
| Acronym | Definition |
|---|---|
| MDEF | Magic Defense (gaming) |
| MDEF | Main Distribution Frame |
| MDEF | Menu Definition Functions |
| MDEF | Meter Data Exchange Format (binary file) |
| MDEF | Menu Definition (function) |
| MDEF | Mehsana District Education Foundation (Ganpat University; Gujarat, India) |