| Acronym | Definition |
|---|
| MRSI➣Magnetic Resonance Spectroscopic Imaging |
| MRSI➣Materials Research Society of India |
| MRSI➣Multiple Round Simultaneous Impact |
| MRSI➣Market Research Solutions, Inc. (various locations) |
| MRSI➣Mountain Regional Services, Inc. |
| MRSI➣Modern Railway Society of Ireland (est. 1987) |
| MRSI➣Mobilization Requirements, Secondary Items |
| MRSI➣Micro Robotics Systems Incorporated |
| MRSI➣Microstrip Rectangular Spiral Inductor |