Definition of patent adjective from the Oxford Advanced American Dictionary

     

    patent

     adjective
    adjective
    NAmE//ˈpætnt//
     
    [only before noun]
     
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  1. 1connected with a patent patent applications/laws the U.S. Patent Office
  2. 2 (old-fashioned) (of a product) made or sold by a particular company patent medicines
  3. 3
    NAmE//ˈpeɪtnt//
     
    , NAmE//ˈpætnt//
     
    (formal) used to emphasize that something bad is very clear and obvious synonym blatant It was a patent lie.
See the Oxford Advanced Learner's Dictionary entry: patent