The Collaborative International Dictionary of English v.0.48:
Contracture \Con*trac"ture\ (?; 135), n. [L. contractura a drawing together.] (Med.) A state of permanent rigidity or contraction of the muscles, generally of the flexor muscles. [1913 Webster]WordNet (r) 3.0 (2006):
contracture n 1: an abnormal and usually permanent contraction of a muscle