| UL | ultrasonic; Underwriters Laboratories; undifferentiated lymphoma; upper limb; upper limit; upper lob... |
|---|---|
| URS | ultrasonic renal scanning |
| US | screen unsharpness ultrasonic, ultrasound; ultrasonography; unconditioned stimulus; unique sequence;... |
| u/s | ultrasonic or ultrasound |
| USCG | ultrasonic cardiography |