| 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) |