Definition of microsurgery noun from the Oxford Advanced Learner's Dictionary

 

microsurgery

 noun
noun
BrE BrE//ˈmaɪkrəʊsɜːdʒəri//
 
; NAmE NAmE//ˈmaɪkroʊsɜːrdʒəri//
 
[uncountable]
 
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the use of extremely small instruments and microscopes in order to perform very detailed and complicated medical operations
See the Oxford Advanced American Dictionary entry: microsurgery