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Definitions of proprietary
  1. noun
    an unincorporated business owned by a single person who is responsible for its liabilities and entitled to its profits

    Similar: 

    type of:
  2. adjective
    protected by trademark or patent or copyright; made or produced or distributed by one having exclusive rights
    "`Tylenol' is a proprietary drug of which `acetaminophen' is the generic form"
    Opposite:
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