| Acronym | Definition |
|---|
| MSSR➣Master (title) |
| MSSR➣Monopulse Secondary Surveillance Radar |
| MSSR➣McCormick & Schmick's Seafood Restaurants, Inc. |
| MSSR➣Moldavian Soviet Socialist Republic (now Moldova) |
| MSSR➣Morphine Sulfate Sustained Release (pain management) |
| MSSR➣Mixer Based Scalar Stimulus Response (microwaves) |
| MSSR➣Moderated School Self Review (UK) |
| MSSR➣Marine Scout Sniper Rifle |
| MSSR➣Milestone Schedule and Status Report |
| MSSR➣Minimum Sum of Squared RDS (Running Digital Sum) |
| MSSR➣Mission and Science Scheduling Room |
| MSSR➣Monthly Schedule Status Review |
| MSSR➣Multi-State System Reliability |
| MSSR➣Monthly Statement of Services Rendered |
| MSSR➣Master of Spatial Science Research |
| MSSR➣Mechanical Solid State Reduction |