| Acronym | Definition |
|---|
| MRAS➣Multi-Room Audio System |
| MRAS➣Middle River Aircraft Systems |
| MRAS➣Model Reference Adaptive System |
| MRAS➣Microsoft Research Annotation System (software) |
| MRAS➣Member of the Royal Asiatic Society |
| MRAS➣Manpower Requirements Assessment Survey |
| MRAS➣Mission Readiness Assessment System (modeling data) |
| MRAS➣Member of the Royal Academy of Sciences |
| MRAS➣Mesoscale Radiatively-Induced Anvil Spreading (meteorology) |
| MRAS➣Millarville Racing and Agricultural Society (Canada) |