Definition of patina noun from the Oxford Advanced American Dictionary

     

    patina

     noun
    noun
    NAmE//pəˈtinə//
     
    , NAmE//ˈpætn̩ə//
     
    [usually singular]
     
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  1. 1a green, black, or brown layer that forms on the surface of some metals The bronze statue had acquired a hard green patina with age.
  2. 2a thin layer that forms on other materials; the shiny surface that develops on wood or leather when it is polished The furniture was old, with the shiny patina of frequent polishing. (figurative) He looked relaxed and elegant and had the patina of success.
See the Oxford Advanced Learner's Dictionary entry: patina