hypertonus

/ˌhaɪpərˈtoʊnəs/
noun
  1. An abnormally high level of tension or tightness in a muscle, often causing stiffness or difficulty moving.
    • Doctors diagnosed the baby with hypertonus after noticing her arms and legs were constantly stiff.
    • Physical therapy can help reduce hypertonus and improve flexibility.
    • The patient's hypertonus in his leg muscles made walking very difficult.
Antonyms
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