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
同义词：myasthenia gravis
any muscular weakness
myasthenia详细解释
my.as.the.ni.a n.（名词）Abnormal muscular weakness or fatigue.肌无力：不正常的肌肉衰弱或者疲劳Myasthenia gravis.重症肌无力 【引伸】 my.asthen.ic
