American English

Definition of modification noun from the Oxford Advanced American Dictionary

      

    modification

     noun
    noun
    NAmE//ˌmɑdəfəˈkeɪʃn//
     
    [uncountable, countable] modification (of/to/in something)
     
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  1. 1the act or process of changing something in order to improve it or make it more acceptable; a change that is made synonym adaptation
  2. 2 Considerable modification of the existing system is needed. It might be necessary to make a few slight modifications to the design.
See the Oxford Advanced Learner's Dictionary entry: modification