| RU | radioulnar; rat unit; reading unit; residual urine; resin uptake; resistance unit; retrograde urogram; right upper; roentgen unit |
|---|---|
| Ru | ruthenium |
| ru | radiation unit |
| RU-1 | human embryonic lung fibroblasts |
| RU-486 | mifepristone |
| Ru1,5P | ribulose-1,5-biphosphate |
| Ru5P | ribulose-5-phosphate |
| RUA | reduced under anesthesia |
| RUD | recurrent ulcer of the duodenal bulb |
| RUE | right upper extremity |