AskDefine | Define atony

Dictionary Definition

atony n : lack of normal muscular tension or tonus [syn: atonicity, atonia, amyotonia] [ant: tonicity]

User Contributed Dictionary



  1. Lack of muscle tone; flaccidity or atonia

Extensive Definition

In medicine, atony (or "atonia", or "atonic") refers to a muscle that has lost its strength. It is frequently associated with the conditions Atonic seizure, Atonic colon, Uterine atony, Gastrointestinal atony (occurs postoperatively) and choreatic atonia.
Atony can also refer to the paralyzed or extremely relaxed state of skeletal muscles in rapid eye movement sleep (REM sleep) in most warm-blooded animals.
atony in German: Atonie
atony in French: Atonie
atony in Polish: Atonia
atony in Dutch: Atonie
atony in Ukrainian: Атонія

Synonyms, Antonyms and Related Words

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