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[as-thee-nee-uh] /æsˈθi ni ə/
lack or loss of strength; weakness.
1795-1805; < New Latin < Greek asthéneia weakness, equivalent to asthene-, stem of asthenḗs (a- a-6 + sthene-, variant stem of sthénos strength) + -ia -ia Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2015.
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Examples from the web for asthenia
  • In some patients, this asthenia is characterized by drowsiness or apathy.
British Dictionary definitions for asthenia


(pathol) an abnormal loss of strength; debility
Word Origin
C19: via New Latin from Greek astheneia weakness, from a-1 + sthenos strength
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Word Origin and History for asthenia

"weakness," 1802, Modern Latin, from Greek asthenia "want of strength, weakness, feebleness, sickness; a sickness, a disease," from asthenes "weak, without strength, feeble," from a-, privative prefix (see a- (3)), + sthenos "strength," of uncertain origin.

Online Etymology Dictionary, © 2010 Douglas Harper
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asthenia in Medicine

asthenia as·the·ni·a (ās-thē'nē-ə)
Loss or lack of bodily strength; weakness; debility.

as·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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Encyclopedia Article for asthenia

a condition in which the body lacks or has lost strength either as a whole or in any of its parts. General asthenia occurs in many chronic wasting diseases, such as anemia and cancer, and is probably most marked in diseases of the adrenal gland. Asthenia may be limited to certain organs or systems of organs, as in asthenopia, characterized by ready fatigability of vision, or in myasthenia gravis, in which there is progressive increase in the fatigability of the muscular system. Neurocirculatory asthenia is a clinical syndrome characterized by breathing difficulties, heart palpitations, a shortness of breath or dizziness, and insomnia. The term neurasthenia was formerly used to describe a mental disorder with such symptoms as easy fatigability, lack of motivation, and feelings of inadequacy.

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Encyclopedia Britannica, 2008. Encyclopedia Britannica Online.
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