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[noo r-uh s-thee-nee-uh, nyoo r-] /ˌnʊər əsˈθi ni ə, ˌnyʊər-/
Psychiatry. (not in technical use) nervous debility and exhaustion occurring in the absence of objective causes or lesions; nervous exhaustion.
Origin of neurasthenia
First recorded in 1855-60; neur- + asthenia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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British Dictionary definitions for neurasthenia


an obsolete technical term for a neurosis characterized by extreme lassitude and inability to cope with any but the most trivial tasks
Derived Forms
neurasthenic (ˌnjʊərəsˈθɛnɪk) adjective
neurasthenically, adverb
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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Word Origin and History for neurasthenia

"nervous exhaustion," 1854, medical Latin, from neur- (form of neuro- before a vowel) + asthenia "weakness" (see asthenia). Related: Neurasthenic.

Online Etymology Dictionary, © 2010 Douglas Harper
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neurasthenia in Medicine

neurasthenia neu·ras·the·ni·a (nur'əs-thē'nē-ə, nyur'-)
A complex of symptoms characterized by chronic fatigue and weakness, loss of memory, and generalized aches and pains.

neu'ras·then'ic (-thěn'ĭk) adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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