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

      

    refinement

     noun
    noun
    BrE BrE//rɪˈfaɪnmənt//
     
    ; NAmE NAmE//rɪˈfaɪnmənt//
     
     
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  1. 1[countable] a small change to something that improves it synonym enhancement This particular model has a further refinement. all the refinements of modern technology
  2. 2[countable] refinement of something a thing that is an improvement on an earlier, similar thing The new plan is a refinement of the one before.
  3. 3[uncountable] the process of improving something or of making something pure the refinement of industrial techniques the refinement of uranium
  4. 4[uncountable] the quality of being polite and well educated and able to judge the quality of things; the state of having the sort of manners that are considered typical of a high social class synonym gentility a person of considerable refinement an atmosphere of refinement
  5. Word Origin early 17th cent.: from refine + -ment, influenced by French raffinement.Extra examples All programs have bugs and need endless refinement. It is possible to add a few useful refinements to the basic system. The kite was star shaped and lacked the refinement of current designs. The technology requires a great deal of refinement. a lack of refinement in engine design a refinement in the masonry a refinement on previous methods a woman of great refinement and beauty the progressive refinement of their accounting technique to add a further refinement to the computer system
See the Oxford Advanced American Dictionary entry: refinement