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pro·​pri·​e·​tary p(r)ə-ˈprī-ə-ˌter-ē plural proprietaries. : something that is used, produced, or marketed under exclusive legal right of the inventor or maker.
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adjective · belonging to a proprietor. · being a proprietor; holding property: the proprietary class. · pertaining to property or ownership: proprietary wealth.

Proprietary software

Granting
Proprietary software is software that grants its creator, publisher, or other rightsholder or rightsholder partner a legal monopoly by modern copyright and intellectual property law to exclude the ... Wikipedia
adjective · multiple · public · common · joint · cooperative · mutual · communal · pooled · shared · conjoint.
relating to an owner or to the fact of owning something: The employees have a proprietary interest in the company.
Proprietary refers to property: things that are owned by individuals or businesses. People talk about proprietary drugs, proprietary software, and other things ...
proprietary in American English · 1. belonging to a proprietor · 2. being a proprietor; holding property · 3. pertaining to property or ownership · 4. belonging ...
Of or relating to property or ownership. proprietary rights. Owning something; having ownership. the proprietary class.