| UCV | uncontrolled variable |
|---|---|
| Var, var | variable; variant, variation, variety |
| VAT | variable antigen type; ventricular accommodation test; ventricular activation time; vesicular amine ... |
| VATs | surface variable antigen |
| VI | Roman numeral six; vaginal irrigation; variable interval; vastus intermedius; virgo intacta; virulen... |