| Abbreviation | Definition |
|---|---|
| ROSIE | Rooters Organized to Stimulate Interest and Enthusiasm |
| ROSIER | Recognition of Stroke in the Emergency Room |
| ROSINA | Rosetta Orbiter Spectrometer for Ion and Neutral Analysis |
| ROSL | Royal Over-Seas League |
| ROSLA | Raising Of School Leaving Age |
| ROSP | Red Onion State Prison |
| ROSP | Rémunération sur Objectif de Santé Publique |
| ROSP | Risk Only Super Plan |
| ROSP | Roster of Service Providers |
| ROSQA | REQUIREMENTS for OMAN'S SYSTEM OF QUALITY ASSURANCE |
| ROSS | Remote Ocean Sensing System |
| ROSS | Representation Ontology Structure Star |
| ROSS | Responsive Objects Surfaces and Spaces |
| ROSS | Russian Oregon Social Services |
| ROST | Rapid Optical Screening Tool |
| ROST | Rod Outer Segment Tips |
| ROT | Raster Operation Type |
| ROT | Rate of Turn |
| ROT | Rate One Turn |
| ROT | Rate Over Time |