myasthenia gravis

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noun myasthenia gra·vis \-ˈgra-vəs, -ˈgrä-\

Definition of myasthenia gravis

  1. :  a disease characterized by progressive weakness and exhaustibility of voluntary muscles without atrophy or sensory disturbance and caused by an autoimmune attack on acetylcholine receptors at the neuromuscular junction

Origin and Etymology of myasthenia gravis

New Latin, literally, grave myasthenia


First Known Use: 1900


Medical Dictionary

myasthenia gravis

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noun myasthenia gra·vis \-ˈgrav-əs, -ˈgräv-\

Medical Definition of myasthenia gravis

  1. :  a disease characterized by progressive weakness and exhaustibility of voluntary muscles without atrophy or sensory disturbance and caused by an autoimmune attack on acetylcholine receptors at neuromuscular junctions


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