ankylosis

/ˌæŋkəˈloʊsɪs/
noun
  1. The abnormal stiffening and immobility of a joint due to fusion of the bones.
    • The X-ray showed complete ankylosis of the patient's hip joint.
    • The accident led to ankylosis of his knee, making it impossible to bend.
    • Ankylosis can occur as a complication of severe arthritis.
Antonyms
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