Noun myasthenia has 2 senses
  1. myasthenia gravis, myasthenia - 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
    --1 is a kind of disease of the neuromuscular junction
  2. myasthenia - any muscular weakness
    --2 is a kind of
    physiological state, physiological condition
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