| Abbreviation | Definition |
|---|---|
| URMD | Unipolar Recurrent Major Depression |
| URO | Urology |
| UROL | Urology |
| UROQ | Upper right outer quadrant |
| URPV | Upper Right Pulmonary Vein |
| URQ | Upper right quadrant |
| URR | Urea Reduction Ratio |
| URSB | Upper Right Sternal Border |
| URT | Upper Respiratory Tract |
| US | Unconditioned Stimulus |
| US | Uterine Suspension |
| USA | Unstable Angina |
| USFN | Unreamed Supracondylar Femoral Nail |
| USIV | Ultra-Som Intra- Vascular |
| USMLE | United States Medical Licensing Examinations |
| USP | Unique Sensory Power |
| UST | Unresolved Sexual Tension |
| UT | Urinary Tract |
| UT | Uterus |
| UTK | Under The Knife |