ankylosis
/ˌang.kɪ.ˈloʊ.sɪs/Definitions
1. noun
a condition in which a joint or a part of the body becomes stiff and immovable, usually as a result of inflammation or trauma
“The doctor diagnosed him with ankylosis in his right knee.”
2. noun
a state of being rigidly fixed or unmoving
“The ankylosis of the market had a negative impact on the economy.”