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

 

lobotomy

 noun
noun
BrE BrE//ləʊˈbɒtəmi//
 
, BrE//ləˈbɒtəmi//
 
; NAmE NAmE//loʊˈbɑːtəmi//
 
(pl. lobotomies) Mental health care
 
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a rare medical operation that cuts into part of a person’s brain in order to treat mental illness See related entries: Mental health care
See the Oxford Advanced American Dictionary entry: lobotomy