pemphigus

from WordNet (r) 3.0 (2006)

pemphigus
    n 1: a skin disease characterized by large thin-walled blisters
         (bullae) arising from normal skin or mucous membrane

from The Collaborative International Dictionary of English v.0.48

Pemphigus \Pem*phi"gus\, n. [Nl., fr. Gr. ?, ?, a bubble.]
   (Med.)
   A somewhat rare skin disease, characterized by the
   development of blebs upon different parts of the body.
   --Quain.
   [1913 Webster]