无效等位基因：见gene项下silent gene- Wickersheimer's fluid (medium)
- Wickham's striae
- Widal's syndrome,test(reaction,serum test)
- Wiesel,
- Wigand's version(maneuver)
- Wilbur-Addis test
- Wilcoxon's rank sum test,signed rank test
- Wild
- Wildermuth's ear
- Wilder's sign
- Wilkins,
- Willebrand disease,factor
- Willett forceps (clamp)
- Willia
- Williamson's blood test
- Williamson's sign
- Williams' sign(tracheal tone)
- Williams syndrome
- Willis' antrum,circle,cords,nerve,paracusis
- Wilms' tumor
- Wilson's muscle
- wilt
- Wimshurst machine
- Winckel's disease
- windburn