myasthenia
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 • Syn: myasthenia gravis • Hypernyms: disease of the neuromuscular junction, autoimmune disease, autoimmune disorder 2. any muscular weakness • Hypernyms: physical condition, physiological state, physiological condition
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