myasthenia gravis

American  

noun

Pathology.

1. a disease of impaired transmission of motor nerve impulses, characterized by episodic muscle weakness and easy fatigability, especially of the face, tongue, neck, and respiratory muscles: caused by autoimmune destruction of acetylcholine receptors. MG

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myasthenia gravis British  

/ ˈɡrɑːvɪs /

noun

1. a chronic progressive disease in which the muscles, esp those of the head and face, become weak and easily fatigued

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Etymology

Origin of myasthenia gravis

1895–1900; < New Latin: serious muscle weakness

Example Sentences

See Examples For:

myasthenia gravis

Argenx currently has one successful growth driver, its Vyvgart drug for rare neuromuscular disease myasthenia gravis, but its U.S. patent is due to expire in 2036, the analysts say.

From The Wall Street Journal ● Jul. 29, 2026

Murray had NHS treatment for the rare autoimmune condition myasthenia gravis and vowed to "win the battle for the NHS" in his first speech to parliament when he became an MP in 2019.

From BBC ● Jun. 22, 2026

In patients with the autoimmune disease myasthenia gravis, muscle cell receptors that induce contraction in response to acetylcholine are targeted by antibodies.

From Textbooks ● Jun. 9, 2022

The cause was pneumonia and complications from myasthenia gravis, said a daughter-in-law, Kathryn Ceja.

From Washington Post ● Sep. 7, 2019

Esophageal paralysis is not uncommon in myasthenia gravis.

From Bronchoscopy and Esophagoscopy A Manual of Peroral Endoscopy and Laryngeal Surgery by Jackson, Chevalier