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Loss of strength or vigor, usually because of disease.
ad′y·nam′ic (-năm′ĭk) adj.
(Medicine) obsolete loss of vital power or strength, esp as the result of illness; weakness or debility
[C19: New Latin, from a-1 + -dynamia, from Greek dunamis strength, force]
loss of strength occasioned by a disease or illness; weakness. — adynamic, adj.See also: Disease and Illness
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|Noun||1.||adynamia - lack of strength or vigor (especially from illness)|
weakness - the property of lacking physical or mental strength; liability to failure under pressure or stress or strain; "his weakness increased as he became older"; "the weakness of the span was overlooked until it collapsed"