myasthenia gravis

noun
myasthenia gra·​vis | \ -ˈgra-vəs How to pronounce myasthenia gravis (audio) , -ˈgrä- How to pronounce myasthenia gravis (audio) \

Definition of myasthenia gravis

: a disease that is characterized by progressive weakness and exhaustibility of voluntary muscles without atrophy and is caused by an autoimmune attack on muscle cell receptors which normally bind to acetylcholine released at nerve endings

Note: Symptoms of myasthenia gravis may include double vision, drooping of the eyelids, difficult swallowing, impaired speech, and weakness in the arms, legs, and neck.

… in myasthenia gravis, antibodies destroy the muscle's receptor proteins that serve as docks for this signal, a chemical called acetylcholine.Science News

Examples of myasthenia gravis in a Sentence

Recent Examples on the Web In 2018, Billingsley was diagnosed with myasthenia gravis, an autoimmune neuromuscular disease. David Woods, USA TODAY, 17 July 2022 In 2018, Billingsley was diagnosed with myasthenia gravis, an autoimmune neuromuscular disease. David Woods, USA TODAY, 17 July 2022 In 2018, Billingsley was diagnosed with myasthenia gravis, an autoimmune neuromuscular disease. David Woods, The Indianapolis Star, 16 July 2022 In the comic books, Web is a blind, elderly woman who suffers from myasthenia gravis, an autoimmune disorder that forces her to use a life support system. Vanessa Etienne, PEOPLE.com, 17 Mar. 2022 In the comic books, Web is a blind, elderly woman who suffers from myasthenia gravis, an autoimmune disorder that forces her to use a life support system. Vanessa Etienne, PEOPLE.com, 17 Mar. 2022 In the comic books, Web is a blind, elderly woman who suffers from myasthenia gravis, an autoimmune disorder that forces her to use a life support system. Vanessa Etienne, PEOPLE.com, 17 Mar. 2022 In the comic books, Web is a blind, elderly woman who suffers from myasthenia gravis, an autoimmune disorder that forces her to use a life support system. Vanessa Etienne, PEOPLE.com, 17 Mar. 2022 In the comic books, Web is a blind, elderly woman who suffers from myasthenia gravis, an autoimmune disorder that forces her to use a life support system. Vanessa Etienne, PEOPLE.com, 17 Mar. 2022 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'myasthenia gravis.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of myasthenia gravis

1900, in the meaning defined above

History and Etymology for myasthenia gravis

New Latin, literally, grave myasthenia

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The first known use of myasthenia gravis was in 1900

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Last Updated

11 Aug 2022

Cite this Entry

“Myasthenia gravis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/myasthenia%20gravis. Accessed 17 Aug. 2022.

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More Definitions for myasthenia gravis

myasthenia gravis

noun
myasthenia gra·​vis | \ -ˈgrav-əs How to pronounce myasthenia gravis (audio) , -ˈgräv- How to pronounce myasthenia gravis (audio) \

Medical Definition of myasthenia gravis

: 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

More from Merriam-Webster on myasthenia gravis

Britannica.com: Encyclopedia article about myasthenia gravis

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