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Noun: myasthenia  ,mI-us'thee-nee-u
  1. A chronic progressive disease characterized by chronic fatigue and muscular weakness (especially in the face and neck); caused by a deficiency of acetylcholine at the neuromuscular junctions
    - myasthenia gravis
     
  2. Any muscular weakness

Derived forms: myasthenias

Type of: autoimmune disease, autoimmune disorder, disease of the neuromuscular junction, physical condition, physiological condition, physiological state

Encyclopedia: Myasthenia, familial

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