| WAN | wide area network |
|---|---|
| WAP | wandering atrial pacemaker |
| WAR | Wasserman antigen reaction; without additional reagents |
| WARDS | Welfare of Animals Used for Research in Drugs and Therapy |
| WARF | warfarin [Wisconsin Alumni Research Foundation] |
| WAS | weekly activities summary; Wiskott-Aldrich syndrome |
| WASP | Weber Advanced Spatial Perception [test] |
| Wass | Wasserman [reaction] |
| WAT | word association test |