ˌärˌthrōgrə̇ˈpōsə̇s, ˌȧˌth- noun
Etymology: New Latin, from arthr- + gryposis
1. : congenital fixation of a joint in an extended or flexed position
2. : any of a heterogeneous group of congenital conditions characterized by reduced mobility of multiple joints due to contractures causing fixation of the joints in extension or flexion