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

     

    diagnostic

     noun
    noun
    BrE BrE//ˌdaɪəɡˈnɒstɪk//
     
    ; NAmE NAmE//ˌdaɪəɡˈnɑːstɪk//
     
    (computing) Computer problems
     
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  1. 1 (also diagnostic program) [countable] a program used for identifying a computer fault See related entries: Computer problems
  2. 2 [countable] a message on a computer screen giving information about a fault
  3. 3diagnostics [uncountable] the practice or methods of diagnosis
  4. Word Origin early 17th cent.: from Greek diagnōstikos ‘able to distinguish’, from diagignōskein ‘distinguish’; the noun from hē diagnōstikē tekhnē ‘the art of distinguishing (disease)’.
See the Oxford Advanced American Dictionary entry: diagnostic

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