sort by Rank | Alpha
| Possible Meanings | Rank |
|---|
| Undergraduate Research Opportunities | *** |
| United Religions Organization | *** |
| UNIDO Regional Office | *** |
| University of Rome | *** |
| Usuarios Reflex Olympus | *** |
| Undergraduate Research Office | *** |
| United Restitution Organization | *** |
| Unified Repertoire and Ordering | *** |
| ulcerative reflux oesophagitis | ** |
| uremic renal osteodystrophy | ** |
| Unit Response Optimization | ** |
| United Religions Organisation | ** |
| University Radio Observatories | ** |
| University of Rostock | ** |
| University Research Office | ** |
| Utilization Review Organizations | ** |
| University Radiation Oncology | ** |
| Unit Resettlement Officer | * |
| University Relations Office | * |
| Unrestricted Operations to Design Test Depth | * |
| Universidad de Republica Orie | * |
| University of Rochester Optics | * |