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Definition of proprietary adjective from the Oxford Advanced American Dictionary

     

    proprietary

     adjective
    adjective
    NAmE//prəˈpraɪəˌtɛri//
     
    [usually before noun]
     
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  1. 1(of goods) made and sold by a particular company and protected by a registered trademark a proprietary medicine proprietary brands a proprietary name
  2. 2relating to an owner or to the fact of owning something The company has a proprietary right to the property.
  3. 3behaving as if you owned someone or something He looked about him with a proprietary air.
See proprietary in the Oxford Advanced Learner's Dictionary
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