Definition of proprietary adjective from the Oxford Advanced Learner's Dictionary



    BrE BrE//prəˈpraɪətri//
    ; NAmE NAmE//prəˈpraɪəteri//
    [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. Word Originlate Middle English (as a noun denoting a member of a religious order who held property): from late Latin proprietarius ‘proprietor’, from proprietas, from proprius ‘one's own, particular’.
See the Oxford Advanced American Dictionary entry: proprietary

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