proprietary
/prʌprˈaɪʌtɛri/
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Definitions
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"
Noun
an unincorporated business owned by a single person who is responsible for its liabilities and entitled to its profits