| UMLS | Unified Medical Language System |
|---|---|
| UMN | Upper Motor Neuron |
| UMN | upper motor neuron |
| UMNL | upper motor neuron lesion |
| UMNS | upper motor neuron syndrome |
| UMP | uridine monophosphate |
| UMPH | uridine 5'-monophosphate phosphohydrolase |
| UMPK | uridine monophosphate kinase |
| UMPS | uridine monophosphate synthase |
| UMS | urethral manipulation syndrome |