myasthenia gravis

noun Pathology.

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

Words nearby myasthenia gravis

Origin of myasthenia gravis

1895–1900; < New Latin: serious muscle weakness Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

British Dictionary definitions for myasthenia gravis

myasthenia gravis
/ (ˈɡrɑːvɪs) /


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

Medical definitions for myasthenia gravis

myasthenia gravis
[ grăvĭs ]


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