wheal ; wheal.boil
wheeze ; wheeze.hiss
Whipple's operation ; Whipple's / oper.work+at+ion.n
white blood cell : WBC ; white / blood / cell
whooping cough ; whoop.cryout+ing / cough
Wilms' tumor ; Wilms' / (tum.swell+or.n)
X-ray therapy ; XRT ; X-ray / therap.heal+y.n
xeroderma pigmentosum ; xer.dry+o+derm.skin+a / pig.ping.paint+ment.n+os.full+um
xerophthalmia ; xer.dry+ophthalm.eye+ia
xeroradiography ; xero.dry+radi.ray+o+graphy.picture
xerostoma, -ia ; xer.dry+o+stom.mouth+ia.n
xiphoid process ; xiph.sword+oid.like / ( pro.forth+cess.go)
Zollinger-Ellison syndrome ; Zollinger / Ellison / syn.same+drom.run+e
zona pellucida ; zona.zone / (pel.through+luc.lux.light+ida)transparent
zygomatic bone ; ( zyg.yoke+oma)cheekbone+t+ic.a / bone
zygomatic branches ; ( zyg.yoke+o+ma.n+at+ic.a) / branch+es