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myasthenia gravis

(-grāvis)

a disease of faulty nerve conduction characterized by myasthenia, esp. of the face and neck

See myasthenia gravis in American Heritage Dictionary 4

noun
A disease characterized by progressive fatigue and generalized weakness of the skeletal muscles, especially those of the face, neck, arms, and legs, caused by impaired transmission of nerve impulses following an autoimmune attack on acetylcholine receptors.

Origin:

Origin: New Latin

Origin: : myasthenia

Origin: + Latin gravis, heavy, severe

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