| RCL | renal clearance |
|---|---|
| TBC | thyroxine-binding coagulin; total body calcium; total body clearance; tuberculosis |
| UC | ulcerative colitis; ultracentrifugal; umbilical cord; unchanged; unclassifiable; unconscious; undiff... |
| UCL | ulnar collateral ligament; upper collateral ligament; upper confidence limit; upper control limit; u... |
| VCR | vasoconstriction rate; vincristine; volume clearance rate |