Medical Dictionary


noun pro·pri·e·tary \p(r)ə-ˈprī-ə-ˌter-ē\
plural pro·pri·e·tar·ies

Medical Definition of PROPRIETARY

:  something that is used, produced, or marketed under exclusive legal right of the inventor or maker; specifically :  a drug (as a patent medicine) that is protected by secrecy, patent, or copyright against free competition as to name, product, composition, or process of manufacture
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