Source : Webster's Revised Unabridged Dictionary (1913)

Varicella \Var`i*cel"la\, n. [NL., dim. of LL. variola
   smallpox.] (Med.)
   Chicken pox.

Source : WordNet®

varicella
     n : an acute contagious disease caused by herpes varicella
         zoster virus; causes a rash of vesicles on the face and
         body [syn: {chickenpox}]