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Definition of anesthesia noun from the Oxford Advanced American Dictionary

     

    anesthesia

     noun
    noun
    NAmE//ˌænəsˈθiʒə//
     
    [uncountable]
     
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  1. 1the use of an anesthetic during medical operations surgery carried out under anesthesia
  2. 2(technology) the state of being unable to feel anything, especially pain