Definition of Seizure, atonic
Seizure, atonic: A seizure in which the person suddenly loses muscle tone and cannot sit or stand upright. Also known as drop attack and drop seizure.
Source: MedTerms™ Medical Dictionaryhttp://www.medterms.com/script/main/art.asp?articlekey=11201
Last Editorial Review: 3/19/2012
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Epilepsy
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