- W
- w-hernia
- wabain
- Wachendorf's membrane
- Wachsmuth's mixture
- Waconda Spring
- wadding
- waddle
- Wade's balsam
- Wade's balsam's suppositories
- Wadsworth's method
- wafer
- Wagner's corpuscles
- Wagner's corpuscles's spot
- Wagner's hammer
- Wagner's line
- Wagner's operation
- Wagner's theory
- Wagstaffe's fracture
- Wahl's sign
- wahoo
- waist
- waiter's cramp
- wakamba
- wakefulness
- waking numbness
- Walcher position
- Walcheren fever
- Waldenburg's apparatus
- Waldeyer's epithelium
- Waldeyer's epithelium's fossae
- Waldeyer's epithelium's glands
- Waldeyer's epithelium's neuron
- Waldeyer's epithelium's ring, Waldeyer's epithelium's throat-ring, or Waldeyer's epithelium's tonsillar ring
- Waldeyer's epithelium's vascular layer
- Waldeyer's epithelium's zonal layer
- Waldeyer's fossa
- wale
- Walker-Gordon milk
- walking typhoid