myasthenia

[mahy-uh s-thee-nee-uh]
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noun Pathology.

muscle weakness.

Origin of myasthenia

First recorded in 1855–60; my- + asthenia
Related formsmy·as·then·ic [mahy-uh s-then-ik] /ˌmaɪ əsˈθɛn ɪk/, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

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Historical Examples of myasthenia


British Dictionary definitions for myasthenia

myasthenia

noun

any muscular weakness
Derived Formsmyasthenic (ˌmaɪəsˈθɛnɪk), adjective

Word Origin for myasthenia

C19: from myo- + asthenia
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

Word Origin and History for myasthenia
n.

"muscular weakness," 1856, medical Latin; see myo- + asthenia.

Online Etymology Dictionary, © 2010 Douglas Harper

myasthenia in Medicine

myasthenia

[mī′əs-thēnē-ə]

n.

Abnormal muscular weakness or fatigue.
Myasthenia gravis.
Related formsmy′as•thenic (-thĕnĭk) adj.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.