| PU | palindromic unit; passed urine; pepsin unit; peptic ulcer; pregnancy urine; 6-propyluracil; prostati... |
|---|---|
| UC | ulcerative colitis; ultracentrifugal; umbilical cord; unchanged; unclassifiable; unconscious; undiff... |
| ACTS | acute cervical traumatic sprain or syndrome; advanced communication technology satellite; American C... |
| AMHT | automated multiphasic health testing |
| ASTM | American Society for Testing and Materials |