Thomsen's disease \Thom"sen's dis*ease"\ [From Thomsen, a physician of Sleswick.] (Med.) An affection apparently congenital, consisting in tonic contraction and stiffness of the voluntary muscles occurring after a period of muscular inaction.
Thomsen's disease n : a mild, rare, congenital form of myotonia characterized by muscle stiffness [syn: {myotonia congenita}]