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myasthenia gravis

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.
Abbreviation: MG.
Origin
1895-1900
1895-1900; < New Latin: serious muscle weakness
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for myasthenia gravis

myasthenia gravis

/ˈɡrɑːvɪs/
noun
1.
a chronic progressive disease in which the muscles, esp those of the head and face, become weak and easily fatigued
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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myasthenia gravis in Medicine

myasthenia gravis myasthenia grav·is (grāv'ĭs)
n.
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. Also called Goldflam disease.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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