proprietarypro·pri·e·ta·ry /prəˈpraɪətəri-teri/ adjectiveadj1based on ideas, information etc belonging to one particular company, rather than on ideas etc that any company can useThe process we use to review what we market is proprietary, and therefore it’s our policy not to discuss it.
Proprietary information about a company’s commodity buying plans could influence the markets if it were publicly known.
The computer uses a proprietary operating system rather than Microsoft’s Windows.
2MARKETING a proprietary product is sold under a company’s brand name, rather than a GENERIC name (=a general name for a type of product)Award’s contact lenses are sold both under its own name and under retailers’ proprietary brands.
proprietary drugs