| UD | ulcerative dermatosis; ulnar deviation; undetermined; underdeveloped; unit dose; urethral dilatation... |
|---|---|
| IUM | internal urethral meatus; intrauterine [fetus] malnourished; intrauterine membrane |
| IR | drop of voltage across a resistor produced by a current; ileal resection; immune response; immunizat... |
| VCU | Voiding Cysto-Urethrogram = VCUG |
| VCUG | Voiding Cysto-Urethro-Gram = VCU |